First contacts

For additional meanings of "First Contact", please see First Contact.

Warning!

This page contains information regarding Star Trek: Lower Decks, and thus may contain spoilers.

This is a list of first contacts between civilizations:

First contact events where the exact date is known

Human (pre-Federation)

Race	Year	Location	Who	Source	Notes
Vulcans	2063	Bozeman, Montana, Earth	Dr. Zefram Cochrane	Star Trek: First Contact	First official contact between Humans and any alien species
Klingons	2151	Broken Bow, Oklahoma, Earth	Starfleet Command	ENT: "Broken Bow"	Before the airing of this episode, first contact was widely assumed to have been in 2223
Suliban		Interstellar space	Enterprise NX-01
Axanar		Unknown system		ENT: "Fight or Flight"
Xyrillians		Interstellar space		ENT: "Unexpected"
Andorians		The P'Jem monastery, on an unnamed planet	Captain Jonathan Archer	ENT: "The Andorian Incident"
Akaali		Akaali homeworld	Captain Jonathan Archer, T'Pol, Hoshi Sato, Charles Tucker III	ENT: "Civilization"	Contact limited to a single Akaali individual, Riaan
Malurians
Nausicaans		Interstellar space	Captain Jonathan Archer	ENT: "Fortunate Son"	This was the first official Starfleet first contact. Contact between the Nausicaans and the Earth Cargo Service personnel they've raided before seems likely.
Valakians		Interstellar space near Valakis	Enterprise NX-01	ENT: "Dear Doctor"	A rare first contact with a pre-warp civilization, even before this became prohibited
Menk		Valakis			This primitive species shared its planet with the Valakians, and were encountered in association with them
Coridanites		Coridan		ENT: "Shadows of P'Jem"
Eska		Dakala	Captain Jonathan Archer	ENT: "Rogue Planet"
Wraiths
Kantare		Unnamed planet	Enterprise NX-01	ENT: "Oasis"
Tandarans	2152	Detention Complex 26	Jonathan Archer, Travis Mayweather	ENT: "Detained"
Kreetassans		Interstellar space	Enterprise NX-01	ENT: "Vox Sola"
Mazarites		Mazar		ENT: "Fallen Hero"
Risians		Risa		ENT: "Two Days and Two Nights"
Paraagans		Paraagan II		ENT: "Shockwave"	Paraagan II was destroyed shortly after contact
Romulans		Romulan minefield		ENT: "Minefield"	No visual contact wwith the Romulans was made until 2266
Retellians		Interstellar space	Charles Tucker III	ENT: "Precious Cargo"
Kriosians		On board a Retellian freighter
Arkonians		Arkonian space		ENT: "Dawn"
Tholians		Presumably near Tholian space	Enterprise NX-01	ENT: "Future Tense"	No visual contact was made by either group
Enolians		Keto-Enol		ENT: "Canamar"
Antarans	2153	Xantoras		ENT: "The Breach"
Vissians		Interstellar space		ENT: "Cogenitor"
Tellarites		Unnamed planet		ENT: "Bounty"
Xindi		Xanthan planet		ENT: "Rajiin"

Federation (22nd century)

Race	Year	Location	Who	Source	Notes
Betans	2167	Beta III	Archon	TOS: "The Return of the Archons"	Ship destroyed during first contact; contact was then lost until 2267
Iotians	2168	Sigma Iotia II	Horizon	TOS: "A Piece of the Action"	Civilization was pre-warp at time of first contact; contact was then lost until 2268

Federation (23rd century)

Race	Year	Location	Who	Source	Notes
Eminians	2217	Eminiar VII	USS Valiant	TOS: "A Taste of Armageddon"	Ship destroyed during first contact; contact was then lost until 2267
Ba'ul	2239	Kaminar	USS Archimedes	DIS: "The Sound of Thunder"	The Ba'ul receives Starfleet's assurance that they would not interfere with Ba'ul's internal affairs.
Talosians	2254	Talos IV	Captain Christopher Pike	TOS: "The Cage"	Shortly thereafter, all contact with the species was prohibited in General Order 7 (TOS: "The Menagerie, Part I")
Tardigrade	2256	USS Glenn	USS Glenn	DIS: "Context Is for Kings"
Pahvans	2256	Pahvo	Lieutenant Ash Tyler, Michael Burnham, Commander Saru	DIS: "Si Vis Pacem, Para Bellum"
jahSepp	2257	USS Discovery	Sylvia Tilly	DIS: "Si Vis Pacem, Para Bellum"
Shepherd	2259	Near Persephone III	Christopher Pike	SNW: "Children of the Comet"
Kerkhovian		Near Kerkhovian moon		SNW: "Charades"
First Federation	2266	Border of First Federation space	Captain James T. Kirk	TOS: "The Corbomite Maneuver"
M-113 creature		M-113		TOS: "The Man Trap"	At the time of first contact virtually extinct
Thasians		Outer space; between Thasus and Colony Alpha 5		TOS: "Charlie X"	The infant Charles Evans contacted the Thasians fourteen years prior
Onlies		Miri		TOS: "Miri"
Taurus II anthropoids	2267	Taurus II	Spock	TOS: "The Galileo Seven"
Keeper		Shore Leave Planet	Doctor Leonard McCoy	TOS: "Shore Leave"
Trelane's species		Gothos	Captain James T. Kirk	TOS: "The Squire of Gothos"
Gorn		Cestus III		TOS: "Arena"
Metrons		Metron space			At the same time as first contact with the Gorn
Betans		Beta III		TOS: "The Return of the Archons"	A failed attempt at first contact was made one hundred years earlier by the Archon
Eminian Union		Eminiar VII		TOS: "A Taste of Armageddon"
Vendikar		Eminiar VII			Roughly at the same time as the Eminian Union
Horta		Janus VI		TOS: "The Devil in the Dark"	First silicon-based lifeform encountered by the Federation
Organians		Organia	Captain James T. Kirk and Spock	TOS: "Errand of Mercy"
Guardian of Forever		Time planet	Doctor Leonard McCoy	TOS: "The City on the Edge of Forever"
flying parasites		Deneva	Captain James T. Kirk	TOS: "Operation -- Annihilate!"	Previously encountered by colonists of Ingraham B and Deneva
Ornithoids		Pyris VII		TOS: "Catspaw"	Two members of this species from outside the galaxy claim to be agents for the Old Ones the relation of which to the species is unknown
Companion		Gamma Canaris region		TOS: "Metamorphosis"	Previously encountered by Zefram Cochrane in 2119
Greek Gods		Pollux IV		TOS: "Who Mourns for Adonais?"	Made contact with Earth around 2700 BC, but their alien nature was not understood by the primitive Humans
Redjac		Argelius II		TOS: "Wolf in the Fold"	Previously encountered by Humans in the past, who were not aware of the creature's alien nature
Vaalians		Gamma Trianguli VI		TOS: "The Apple"
2268	Enderprizians	Planet 0042692	Ensign David Garrovick	PRO: "All the World's a Stage"	Pre-warp at the time of first contact. Supposed to be a covert operation to deal with an impending disaster, but Garrovick was injured and became stranded
	892-IV natives	892-IV	Captain James T. Kirk	TOS: "Bread and Circuses"	Previously encountered by Captain R.M. Merik in 2262
	Providers	Triskelion		TOS: "The Gamesters of Triskelion"
	Kelvans	Kelvan colony planet located near galactic barrier		TOS: "By Any Other Name"	Possibly the first Andromeda Galaxy civilization ever encountered
	Sargon's race	Arret		TOS: "Return to Tomorrow"	At the time of first contact virtually extinct
	Kohms and Yangs	Omega IV	Captain Ronald Tracey	TOS: "The Omega Glory"
	Melkotians	Melkotian planet	Captain James T. Kirk	TOS: "Spectre of the Gun"
	Gorgan	Triacus		TOS: "And the Children Shall Lead"	At the time of first contact virtually extinct. Previously encountered by the Starnes Exploration Party
	Morgs and Eymorgs	Sigma Draconis VI		TOS: "Spock's Brain"
	Gem's species	Minara II		TOS: "The Empath"
	Vians	Minara II			At the same time as first contact with the Gem's species
	Fabrini	Yonada		TOS: "For the World is Hollow and I Have Touched the Sky"	Fabrini were previously thought to have become extinct when their sun went nova 10,000 years prior
	Beta XII-A entity	Beta XII-A		TOS: "Day of the Dove"
	Platonians	Platonius		TOS: "Plato's Stepchildren"	Made contact with Earth around 400 BC, but their alien nature was not discovered
	Scalosians	Scalos		TOS: "Wink of an Eye"
	Kalandans	Kalandan outpost		TOS: "That Which Survives"	At the time of first contact virtually extinct
	Cheron natives	space near Ariannus		TOS: "Let That Be Your Last Battlefield"	At the time of first contact virtually extinct, except two individuals
Zetarians	2269	space near Memory Alpha		TOS: "The Lights of Zetar"	At the time of first contact virtually extinct
Excalbians		Excalbia		TOS: "The Savage Curtain"
Sarpeidon natives		Sarpeidon Past		TOS: "All Our Yesterdays"	At the time of first contact all Sarpeidons had emigrated to the past, and may thus be considered extinct from a 23rd century perspective
Phylosians		Phylos		TAS: "The Infinite Vulcan"
Magnetic organism		near Questar M-17		TAS: "Beyond the Farthest Star"
Theela's species		The second planet of the Taurean system		TAS: "The Lorelei Signal"
Cosmic cloud		space near Mantilles		TAS: "One of Our Planets Is Missing"
Megans		Megas-Tu		TAS: "The Magicks of Megas-Tu"	Made contact with Earth around the 17th century, but their alien nature was not understood by Humans
Aquans		Argo		TAS: "The Ambergris Element"
Lactrans		Lactra VII	Lieutenant Commander Tom Markel	TAS: "The Eye of the Beholder"
Delta Theta III aborigines	2270	Delta Theta III	Captain James T. Kirk	TAS: "Bem"
Delta Theta III entity		Delta Theta III			At the same time as first contact with the Delta Theta III aborigines
Kukulkan's species		space near the Sol system		TAS: "How Sharper Than a Serpent's Tooth"	Made contact with Earth in the past, but their alien nature was not understood by the primitive Humans
Arret natives		Arret		TAS: "The Counter-Clock Incident"
Whale Probe	2286	Sol system	USS Saratoga (NCC-1887)	Star Trek IV: The Voyage Home	Made contact with other Earth creatures in the past (notably the Humpback whales)
Sha Ka Ree entity	2287	Sha Ka Ree	Captain James T. Kirk	Star Trek V: The Final Frontier

Federation (24th century)

Race	Year	Location	Who	Source	Notes
Q	2364	Near Deneb IV	USS Enterprise-D	TNG: "Encounter at Farpoint"
Ferengi		Outpost 63, Delphi Ardu system		TNG: "The Last Outpost"	Prior to "official" first contact, the species was already known to the Federation through rumors
Beta Renner cloud		Interstellar space between Parliament and Antica		TNG: "Lonely Among Us"
Edo		Rubicun III		TNG: "Justice"
Edo God		Rubicun III
Microbrain		Velara III		TNG: "Home Soil"	The Microbrain entity decided not to engage in relations with the Federation for the next three centuries
Aldeans		Aldea		TNG: "When The Bough Breaks"	This species was previously thought to be legendary
Armus		Vagra II		TNG: "Skin Of Evil"
Parasitic beings		Dytallix B	Captains Tryla Scott and Jean-Luc Picard and Commander William T. Riker	TNG: "Conspiracy"	These hostile creatures had apparently been aware of the Federation for some time, but chose not to reveal themselves and rather infiltrate Starfleet
Ian Troi entity	2365	Interstellar space	USS Enterprise-D	TNG: "The Child"
Nagilum		hole in space		TNG: "Where Silence Has Lease"
Dremans		Drema IV	Lieutenant Commander Data	TNG: "Pen Pals"
Borg		System J-25	USS Enterprise-D	TNG: "Q Who"
Husnocks	2366	Rana IV	Rana IV colonists	TNG: "The Survivors"	The entire species became extinct soon after contact
Douwd		Rana IV	USS Enterprise-D	TNG: "The Survivors"	Members of this species have lived among Humans previously, with their alien nature unknown to them
Mintakans		Mintaka III	USS Enterprise-D	TNG: "Who Watches The Watchers"	A pre-warp civilization, first contact was made accidentally and it can be assumed that no further contacts will be maintained after the 2366 incident
Koinonians		Koinonian homeworld	USS Enterprise-D	TNG: "The Bonding"
Unnamed humanoid species		Lonka Cluster	USS Enterprise-D	TNG: "Allegiance"
Gomtuu's species		Beta Stromgren system	Tam Elbrun	TNG: "Tin Man"
Zalkonians		Interstellar space	USS Enterprise-D	TNG: "Transfigurations"
Barash's species	2367	Alpha Onias III	Commander William T. Riker	TNG: "Future Imperfect"
Two-dimensional beings		Interstellar space	USS Enterprise-D	TNG: "The Loss"
Ardra's species		Ventax II	USS Enterprise-D	TNG: "Devil's Due"
Paxans		Ngame Nebula	USS Enterprise-D	TNG: "Clues"	All memories and records of the contact were erased
Malcorians		Malcor III	Commander William T. Riker	TNG: "First Contact"	First contact was accidentally made days before they were to initiate their first warp drive; subsequently, the Malcorian government decided to postpone the warp tests and focus on domestic issues first, keeping the public in the dark about the existence of aliens
Spaceborne lifeforms		Alpha Omicron system	USS Enterprise-D	TNG: "Galaxy's Child"
Tyken's Rift being		Tyken's Rift	USS Enterprise-D	TNG: "Night Terrors"
Tarchanne		Tarchannen III	USS Enterprise-D	TNG: "Identity Crisis"	Previously encountered by the USS Victory in 2362; the species consists of other humanoids infected with a parasite, transforming their DNA
Cytherians		Galactic core	USS Enterprise-D	TNG: "The Nth Degree"
Lysians	2368	Lysian system	USS Enterprise-D	TNG: "Conundrum"
Satarrans		Lysian system	USS Enterprise-D	TNG: "Conundrum"
Ux-Mal		Mab-Bu VI	USS Enterprise-D	TNG: "Power Play"
FGC-47 lifeforms		FGC-47	USS Enterprise-D	TNG: "Imaginary Friend"
Kataan natives		Parvenium system	Captain Jean-Luc Picard	TNG: "The Inner Light"	The species was virtually extinct at time of first contact
Devidians		Devidia II	USS Enterprise-D	TNG: "Time's Arrow"	Previously encountered by Humans in the 19th century who didn't understand their alien nature
Solanogen-based lifeforms	2369	Amargosa Diaspora	USS Enterprise-D	TNG: "Schisms"
Prophets		Bajoran wormhole	Commander Benjamin Sisko	DS9: "Emissary"
Coalescent organism		Relay Station 47	USS Enterprise-D	TNG: "Aquiel"
Tosk		Deep Space 9	Chief Miles O'Brien	DS9: "Captive Pursuit"	First contact with a Gamma Quadrant species
Hunters		Deep Space 9	Deep Space 9 crew
Wadi		Unknown Gamma Quadrant location	Vulcan exploratory mission	DS9: "Move Along Home"	First "proper" contact with a Gamma Quadrant species
Nol-Ennis		Unnamed Gamma Quadrant moon	USS Yangtzee Kiang	DS9: "Battle Lines"
Ennis
Progenitors		Vilmor II	Captain Jean-Luc Picard and Doctor Beverly Crusher	TNG: "The Chase"	Species virtually extinct at time of contact
Unnamed non-corporeal Gamma Quadrant species		Deep Space 9	Deep Space 9 crew	DS9: "If Wishes Were Horses"
Quantum singularity lifeforms		Interstellar space, supposedly near Romulan space	USS Enterprise-D	TNG: "Timescape"
Rakhari		unknown	unknown	DS9: "Vortex"
Skrreea	2370	Deep Space 9	Deep space 9 crew	DS9: "Sanctuary"
Boraalans		USS Enterprise-D	Nikolai Rozhenko	TNG: "Homeward"	A pre-warp civilization, contact was made when a Federation observer purposely made first contact in direct violation of the Prime Directive in order to save them from extinction
Anaphasic lifeform		Caldos colony	USS Enterprise-D	TNG: "Sub Rosa"	Previously living among Humans for centuries, who didn't understand it's alien nature
Parada		Unknown, likely Gamma Quadrant	Deep Space 9 crew	DS9: "Whispers"
Barkonians		Barkon IV	Lieutenant Commander Data	TNG: "Thine Own Self"
D'Arsay		Sector 1156	USS Enterprise-D	TNG: "Masks"	Species virtually extinct at time of contact
Yaderans		Unnamed Yaderan colony	Odo and Lieutenant Jadzia Dax	DS9: "Shadowplay"
Dominion		Unnamed Gamma Quadrant planet	Commander Benjamin Sisko	DS9: "The Jem'Hadar"	The Federation had encountered one Changeling, Odo, before this time
Seltin Rakal's species	2371	Meridian	USS Defiant (NX-74205)	DS9: "Meridian"
Argrathi	2372	Argratha	USS Defiant (NX-74205)	DS9: "Hard Time"
Onaya's species		Deep Space 9	Jake Sisko	DS9: "The Muse"	Previously encountered by Humans who didn't understand the species' alien nature
Teplans		Teplan homeworld	USS Defiant (NX-74205)	DS9: "The Quickening"
Pah-wraiths	2373	Deep Space 9	Chief Miles O'Brien	DS9: "The Assignment"
Ba'ku	2375	Ba'ku planet	Lieutenant Commander Data	Star Trek: Insurrection
Galardonians	2379	Galar system	USS Quito	LD: "Second Contact"
Lapeerians	2381	Lapeeria	USS Cerritos	LD: "First First Contact"	The USS Archimedes was initially dispatched to make first contact but was damaged en route to Lapeeria.
Areore		Areolus		LD: "A Mathematically Perfect Redemption"	First contact was forced by Peanut Hamper's interference in the Areore culture in direct violation of the Prime Directive after crash landing on the planet following the Battle of Kalla. However, while the species was currently pre-industrial, it had been space faring in the past.
Dilmerians	2382	Dilmer III	USS Cerritos	LD: "Fully Dilated"	While recovering the head of a Data from an alternate reality, an away team from the Cerritos became stuck on the planet for a year of relative time, living amongst the natives. As the civilization was pre-warp, the team were careful not to violate the Prime Directive.
Cymari	2383	Cymari homeworld	USS Protostar	PRO: "First Con-tact"	The Protostar was crewed by a group of young aliens who were tricked into making first contact by DaiMon Nandi. Their actions broke the Prime Directive and left the Cymari with a bad first impression of interstellar visitors for the future.

Federation (Delta Quadrant species encountered during 24th century)

Race	Year	Location	Who	Source	Notes
Nacene	2371	Ocampa System	USS Equinox	VOY: "Caretaker"
Krowtonan Guard		Delta Quadrant space near Ocampa		VOY: "Equinox"
Talaxians		Ocampa System	USS Voyager	VOY: "Caretaker"
Ocampa		Ocampa	USS Voyager
Kazon
Vidiians		Unnamed rogue planetoid		VOY: "Phage"
Banea		Banea		VOY: "Ex Post Facto"
Vhnori		Vhnori homeworld		VOY: "Emanations"
Sikarians		Sikaris		VOY: "Prime Factors"
Photonic lifeform		Near a protostar		VOY: "Heroes and Demons"
Komar		Unnamed Delta Quadrant dark matter nebula		VOY: "Cathexis"
Haakonians		Interstellar space		VOY: "Jetrel"
Reptohumanoids	2372	Planet Hell		VOY: "Parturition"
Botha		Botha space		VOY: "Persistence of Vision"
Sky Spirits		Sky Spirits' homeworld		VOY: "Tattoo"	The species visited Earth approximately 45,000 years ago, but their alien nature was not understood by primitive Humans
Augris' species		Mokra-controlled planet		VOY: "Resistance"
Automated Personnel Units		Delta Quadrant		VOY: "Prototype"
Drayans		Drayan II		VOY: "Innocence"
Viorsa's species		Kohl settlement		VOY: "The Thaw"	This species is likely virtually extinct
Nechani	2373	Nechani homeworld		VOY: "Sacred Ground"
Akritirians		Akritiri		VOY: "The Chute"
Enarans		Fima colony		VOY: "Remember"	Most likely first contact at that time since Voyager reached their region then
The Swarm		Delta Quadrant, near Swarm-controlled space		VOY: "The Swarm"
Mislenites		Delta Quadrant, near Swarm-controlled space		VOY: "The Swarm"	Unofficial first contact as the only member encountered, Chardis, eventually died while being treated in sickbay
Ilari		Interstellar space		VOY: "Warlord"
Garan		Garan mining colony, near Tak Tak space		VOY: "Macrocosm"	Most likely first contact at that time since Voyager reached their region then
Tak Tak		Delta Quadrant
Marayna's species		Inversion nebula		VOY: "Alter Ego"
Kolaati		Nekrit Expanse		VOY: "Fair Trade"
Unnamed non-corporeal lifeform		Unnamed planet	Captain Kathryn Janeway	VOY: "Coda"
Nezu		Unnamed Nezu Colony	USS Voyager	VOY: "Rise"	Most likely first contact at that time since Voyager reached their region then
Etanian		space near Unnamed Nezu Colony
Mikhal Travelers		Unnamed Mikhal Traveler outpost		VOY: "Darkling"
Taresians		Taresia		VOY: "Favorite Son"
Nasari		Nasari space, near the Taresia system
Voth		Delta Quadrant, Voth city ship		VOY: "Distant Origin"	It is quite possible that the Voth authorities covered this contact up
Nyrians		Delta Quadrant		VOY: "Displaced"
Jarlath's species		Nyrian biosphere vessel
Species 8472		Northwest Passage		VOY: "Scorpion"
Vori	2374	Delta Quadrant planet		VOY: "Nemesis"
Kradin		Delta Quadrant planet
Caatati		Interstellar space		VOY: "Day of Honor"	The entire species, except for 27 ships, was assimilated by the Borg at the time of contact
Serosians		Interstellar space		VOY: "Revulsion"
B'omar		Edge of B'omar space		VOY: "The Raven"	Most likely first contact at that time since Voyager reached their region then
Srivani		Delta Quadrant		VOY: "Scientific Method"
Krenim		Krenim Imperium space		VOY: "Year of Hell"
Zahl		Zahl space
Mari		Mari homeworld		VOY: "Random Thoughts"
Unnamed humanoid species		Delta Quadrant		VOY: "Concerning Flight"
Tau's species
Dream Aliens		Dream species planet		VOY: "Waking Moments"
Hirogen		Transmission from a Hirogen communications network relay station		VOY: "Message in a Bottle"
Entharans		Delta Quadrant		VOY: "Retrospect"	Most likely first contact at that time since Voyager reached their region then
Unnamed DNA switching lifeform		Interstellar space		VOY: "Vis à Vis"
Daelen's species		Interstellar space
Steth's species		Interstellar space
Allos' species		M-class moon		VOY: "The Omega Directive"
Ramurans		Delta Quadrant		VOY: "Unforgettable"	Though this species tried hard to hide all evidence of their existence, record of them exists in Chakotay's written testimonial
Kyrians				VOY: "Living Witness"	Date might be wrong, as every other aspect of the encounter was severely distorted by said Kyrian historians, though it was certainly between 2371 and 2378
Vaskans					Date might be wrong, as every other aspect of the encounter was severely distorted by said Kyrian historians, though it was certainly between 2371 and 2378
Biomimetic species		Class Y planet		VOY: "Demon"
Species 116		Unnamed trading colony		VOY: "Hope and Fear"	At the time of first contact the species was almost virtually extinct due to Borg assimilation
Malons	2375	The Void		VOY: "Night"
Night Aliens		The Void
Unnamed cytoplasmic lifeform		Delta Quadrant		VOY: "Nothing Human"
Moneans		The Waters		VOY: "Thirty Days"
Species 6339		Grid 124, Octant 22-theta		VOY: "Infinite Regress"	At the time of first contact the species was almost virtually extinct due to Borg assimilation
Brenari		Border of the Devore Imperium		VOY: "Counterpoint"	Most likely first contact at that time since Voyager reached their region then
Devore		Border of the Devore Imperium			Most likely first contact at that time since Voyager reached their region then
Noss' species		Unnamed planet		VOY: "Gravity"
Photonic lifeforms		Border of the Devore Imperium		VOY: "Bride of Chaotica!"
Chaotic space aliens		Chaotic space		VOY: "The Fight"
Qatai's species		Delta Quadrant		VOY: "Bliss"
Telepathic pitcher plant
Varro				VOY: "The Disease"
Hazari				VOY: "Think Tank"	Most likely first contact at that time since Voyager reached their region then
Kadi		Kadi homeworld		VOY: "Someone to Watch Over Me"
Hierarchy	2376	Delta Quadrant		VOY: "Tinker Tenor Doctor Spy"
Turei		Underspace		VOY: "Dragon's Teeth"
Vaadwaur		Vaadwaur homeworld		VOY: "Dragon's Teeth"
Ba'Neth		Delta Quadrant		VOY: "Riddles"
Kesat
Norcadians		Norcadia Prime		VOY: "Tsunkatse"
Pendari		Norcadia Prime
Kelemane's species		Kelemane's planet orbit		VOY: "Blink of an Eye"	This species was not yet warp-capable when they made contact with Voyager, though it is conceivable they were by the time Voyager left
Qomar		Delta Quadrant		VOY: "Virtuoso"
Wysanti				VOY: "Collective"
Nakan		Tarakis		VOY: "Memorial"
					The species was virtually extinct at time of contact
Kobali		Delta Quadrant		VOY: "Ashes to Ashes"
Brunali		Brunali homeworld		VOY: "Child's Play"	Voyager encountered a Brunali before reaching their home planet, though this is not considered first contact as the individual was a child, not able to represent its species (VOY: "Collective")
Telsians		Telsius Prime		VOY: "Live Fast and Prosper"
Kelis' species		Kelis' homeworld	Lieutenant B'Elanna Torres	VOY: "Muse"
Terrellians	2377	Delta Quadrant	USS Voyager	VOY: "Drive"	Most likely first contact at that time since Voyager reached their region then
Aksani					Most likely first contact at that time since Voyager reached their region then
Chessu					Most likely first contact at that time since Voyager reached their region then
Imhotep					Most likely first contact at that time since Voyager reached their region then
Lokirrim				VOY: "Body and Soul"
Kraylor				VOY: "Nightingale"	Most likely first contact at that time since Voyager reached their region then
Annari					Most likely first contact at that time since Voyager reached their region then
Nygeans				VOY: "Repentance"
Benkarans
Fantome's species		the Void		VOY: "The Void"
Nar Shaddan		Delta Quadrant		VOY: "Workforce"
Quarren		Quarra
Norvalens		Delta Quadrant, most likely Quarra			Most likely first contact at that time since Voyager reached their region then
Otrin's species	ca. 2248 / 2378	Otrin's homeworld		VOY: "Friendship One"	Pre-warp at the time of first contact
Ledosians	2378	Ledos		VOY: "Natural Law"
Ventu			Chakotay, Seven of Nine
Vau N'Akat	2385	Solum	USS Voyager-A	PRO: "Ouroboros, Part II"	In an alternate timeline, first contact was made by a Prometheus-class starship at a later date, leading to a devastating civil war.

Other species

Race 1	Race 2	Year	Location	Who	Source	Notes
Vulcans	Klingons	2016	H'atoria system	Unknown	DIS: "The Vulcan Hello"	Resulted in the destruction of a Vulcan starship at the hands of the Klingons. Vulcan ships met all subsequent encounters with a show of force to ward off any more attacks
Klingons	Organians	2267	Organia	Kor	TOS: "Errand of Mercy"	At exactly the same time as Federation-Organian first contact; at least one Klingon cruiser had unknowingly made contact with Organians some years before 2154 (ENT: "Observer Effect")
Gem's species	Vians	2268	Minara II	Gem	TOS: "The Empath"
Ferengi	Stakoron	2369	unknown	unknown	DS9: "The Nagus"
Ferengi	Dominion	2370	Unknown	Quark and Pel	DS9: "Rules of Acquisition"	First contact was made through the Karemma; though the Federation also made contact with the Dominion in 2370, the Ferengi were the first Alpha Quadrant species to make contact
Borg	Species 6339	2371	Unknown, presumably Delta Quadrant	Unknown	VOY: "Infinite Regress"

Species where approximate first contact dates are known

Humans

Lower limits of 2063 refer to the year of Earth's first official first contact.

Race	Approximate year	Location	Who	Source	Notes
Kzin	Shortly after 2067	Unknown	Unknown	TAS: "The Slaver Weapon"	Four wars were fought "two hundred years" before 2269. This might have been an approximation, but it does suggest they took place very shortly after Earth achieved Warp. It might also have been after 2067, as "Friendship One" established that Humans still "had no idea" of what threats lay in space in that year.
Draylaxians	Between 2063 and 2126	Unknown	Unknown	ENT: "Fortunate Son"	Based on Travis Mayweather's birthdate, he was born on the Draylax/Vega run
Trillius Prime inhabitants	Between 2063 and the 2130s	Unknown	Unknown	ENT: "Broken Bow"	Travis Mayweather visited the planet in sixth grade (he was born in 2126)
Denobulans	Between 2063 and the 2130s	Unknown	Unknown	ENT: "Cold Station 12", "Demons"	Based on the earliest known operating date of Cold Station 12, and corroborated by estimates of when Nathan Samuels was 18
Teneebian moons inhabitants	Between 2063 and 2140s	Unknown	Unknown	ENT: "Broken Bow"	Travis Mayweather visited these before he started his Starfleet training
Orions	Between 2063 and 2152	Unknown	Unknown	ENT: "Horizon"	However, Arik Soong, a rogue Human, seems to have had contact with Orions at least in the 2140s
Demerians	Between 2063 and 2152	Unknown	Unknown	ENT: "Horizon"
Neubilia Prime inhabitants	Between 2063 and 2153	Unknown	Unknown	ENT: "United"	Before Captain Mayweather's death in late 2152

Denobulans

Race	approximate Year	Location	Who	Source	Notes
B'Saari	Before the 19th century	Unknown	Unknown	ENT: "Future Tense"	First Denobulan first contact, therefore before first contact between Denobulans and Antarans
Antarans	Before the 19th century	Unknown	Unknown	ENT: "The Breach"	Based on the end date of their last war
Bynar	Before 2151	Unknown	Unknown	ENT: "Regeneration"	Given Phlox's statement, it seems likely that he encountered the Bynar before he joined Enterprise; even if that assumption is false, the latest possible date is 2153, the year the episode played out

Vulcans

Race	Approximate year	Location	Who	Source	Notes
Tellarites	At the latest 1957	Unknown	Unknown	ENT: "Carbon Creek"
Andorians	Early 20th century	Unknown	Unknown	ENT: "Proving Ground"
Arkonians	ca. 2050s	Unknown	Unknown	ENT: "Dawn"	"nearly one hundred years" before 2152
Tholians	Before 2152	Unknown	Unknown	ENT: "Future Tense"
Cardassians	Before 2240s	Unknown	Unknown	DS9: "Trials and Tribble-ations"	Based on Iloja of Prim living on Vulcan, somewhere between Dax's birth in 2018 and when Dax joined Emony Dax. Cardassian voles were present on the Starfleet ship USS Discovery in 2256, although it also had a Gorn even though official first contact was not yet made.
Trill	Before 2240s	Unknown	Unknown	DS9: "Trials and Tribble-ations"	Based on Emony Dax meeting a young Leonard McCoy

Federation

Race	Approximate year	Location	Who	Source	Notes
Betazoids	Before May 2256	Unknown	Unknown	DIS: "Magic to Make the Sanest Man Go Mad"	Mentioned in the context of Harry Mudd supposedly having robbed a Betazoid bank prior to being imprisoned during the Federation-Klingon War. In the alternate timeline, Betazoids were first mentioned in 2255.
Tamarians	2260s	Unknown	Unknown, possible Captain A. Silvestri	TNG: "Darmok"	The Federation had encountered the Tamarians seven times in the hundred years before 2368, but formal relations were only established in that year due to vast differences in their methods of communication
Ktarians	Before 2284	Unknown	Unknown	Star Trek Generations	Based on the mention of Ktarian eggs in that year
Yridians	24th century, before 2367	Unknown	Captain Rudolph Ransom	VOY: "Equinox"	Yridians were thought to be extinct, though it is unknown for how long, as the 22nd century Vulcan database had info helpful in contacting them. (ENT: "Twilight") First contact occurred between Ransom's graduating from Starfleet Academy and his promotion to captain, which was in 2367 at the latest, based on knowledge of his encounter with a Klingon Bird-of-Prey in that year. Assuming that Branson's age in 2375 was 50, like John Savage, first contact was probably at most thirty years before 2367
Dosi	2369 or 2370	Unknown	Unknown	DS9: "Hard Time"	The discovery of the Bajoran wormhole presumably provides an earliest possible date
Karemma	between 2369 and 2371	Unknown	Unknown	DS9: "Hard Time"	The discovery of the Bajoran wormhole presumably provides an earliest possible date
Argrathi	between 2369 and 2372	Unknown	Unknown	DS9: "Hard Time"	The discovery of the Bajoran wormhole presumably provides an earliest possible date
Ankari	Between 2371 and 2375	Delta Quadrant	USS Equinox	VOY: "Equinox"	It is not entirely clear when the Equinox encountered this species
Nucleogenic lifeforms	Between 2371 and 2375	Delta Quadrant	USS Equinox	VOY: "Equinox"	Contact was made at the same time as contact with the Ankari
Ponea	Between 2371 and 2375	Delta Quadrant	USS Equinox	VOY: "Equinox"
Vau N'Akat	circa 2434	Delta Quadrant		PRO: "A Moral Star, Part 2"	According to The Diviner, The Federation will make first contact in 50 years after the Protostar's discovery.
Vojeans	Before 2377	Delta Quadrant	USS Voyager	VOY: "Q2"	Voyager moved trough their region of space several months before the events of "Q2"
Wyngari	Before 2377	Delta Quadrant	USS Voyager	VOY: "Q2"	Voyager moved trough their region of space several months before the events of "Q2"

Borg

Race	approximate Year	Location	Who	Source	Notes
Species 116	Before ca. 2174	Unknown	Unknown	VOY: "Hope and Fear"	Based on Arturis' statement in 2374 that his species managed to outwit the Borg for "centuries"
Vaadwaur	Before the 15th century	Unknown	Unknown	VOY: "Hope and Fear"
Species 262	Probably the 22nd century	Unknown	Unknown	VOY: "The Omega Directive"	Based on date of first assimilation
Species 263	Probably the 22nd century	Unknown	Unknown	VOY: "The Omega Directive"	Designation suggests first contact shortly after Species 262
Ktarians	Before 2350s	Unknown	Unknown	VOY: "Dark Frontier"
Species 571	Before 2368	Unknown	Unknown	VOY: "Survival Instinct"	Designation suggests first contact shortly after Species 263
Species 8472	Circa 2373	Unknown	Unknown	VOY: "Scorpion"

Other species

Race 1	Race 2	Year	Location	Who	Source	Notes
Klingons	Hur'q	14th century	Unknown	Unknown	DS9: "The Sword of Kahless"	A thousand year before 2372
Coridanites	Orions	"centuries" before 2155	Unknown	Unknown	ENT: "Demons"
Bajorans	Cardassians	Between 16th and 22nd century	Unknown	Unknown	DS9: "Explorers", "Accession"	Official first contact supposedly happened after the forgotten first contact by lightships, and before Akorem Laan disappeared in the Bajoran year 9174 (as he was familiar with Cardassians)
Xindi	Sphere-Builders	2030s or shortly thereafter	Unknown	Unknown	ENT: "The Council"	The Sphere-Builders contacted the Xindi to help them in their Great Diaspora, which started after the destruction of Xindus in the 2030s
Valakians	M'klexa	Before 2151	Valakis	Unknown	ENT: "Dear Doctor"	It is possible that the Menk made contact with the M'klexa at the same time
Valakians	Ferengi	Before 2151	Valakis	Unknown	ENT: "Dear Doctor"	It is possible that the Menk made contact with the Ferengi at the same time
Ferengi	Hupyrians	Probably before 2151	Unknown	Unknown	ENT: "Acquisition"	Based on a mention of Hupyrian beetle snuff
Klingons	Ventaxians	2297	Ventax II	Unknown		TNG: "Devil's Due"
Bajorans	Changelings	mid-24th century	Denorios belt	Odo, Mora Pol	DS9: "The Alternate"	Other Changelings, and their association with the Dominion, remained unknown until 2371

Unofficial first contacts

Often species have made contact much earlier than their official first contact dates, in events that become lost in history, are not reported, or whose full significance is not realized at the time.

Human and Federation

Race	Year	Location	Who	Source	Notes
Sky Spirits	Several times, starting 45,000 years ago	Earth, America	Native Americans	VOY: "Tattoo"	This species engaged in genetically engineering the group of people that would become come to inhabit North and South America. They reached Earth from their Delta Quadrant homeworld in generation ships. It was not explicitly stated when they last visited Earth, but their description of the circumstances suggests it to be somewhere after the conquest of the Americas by Europeans.
Kukulkan's species	Time of the Egyptian, Mayan, Aztec, and Chinese civilizations	Earth	Humans from around the world	TAS: "How Sharper Than a Serpent's Tooth"	Kukulkan was the last of his kind, he was mistaken for a god by the Earth natives and taught them technology and architecture; the true nature of this entity was discovered in 2270 by the crew of the USS Enterprise
Greek gods	Around 2700 BC	Mediterranean region of Earth	Inhabitants of ancient Greece	TOS: "Who Mourns for Adonais?"	This race was thought mythical until encountered by the USS Enterprise (NCC-1701) in 2267
Gary Seven's benefactors	4000 BC and later through Human agents	Earth	Unknown	TOS: "Assignment: Earth"	This race kidnapped Humans from Earth so that their ancestors could work as their agents
Platonians	400 BC	Earth	Inhabitants of Ancient Greece	TOS: "Plato's Stepchildren"
Onaya's species	100 BC, 1821	Earth	Catullus, John Keats	DS9: "The Muse"
Unknown anaphasic lifeform species	from 1647 on	Glasgow	Jessel Howard and her female descendants	TNG: "Sub Rosa"
Q	1666, 1864, 1969	England, United States of America	Isaac Newton, Thaddius Riker, Maury Ginsberg	VOY: "Death Wish"
Preservers	18th century	North America, Earth	Native Americans	TOS: "The Paradise Syndrome"	They transplanted a group of Native Americans to Amerind
Skagarans	19th century	United States of America, Earth	Humans	ENT: "North Star"	They transplanted a group of several thousand Humans to one of their colonies to work as slaves; their descendants suggest they used mainly Americans of European descent
Redjac	1888 - 1891, 1932, 1974	London, Shanghai, and Kiev	Humans	TOS: "The Paradise Syndrome"	The true nature of this entity was discovered in 2267 by the crew of the Enterprise
El-Aurians	Around 1893	San Francisco, Earth	Humans	TNG: "Time's Arrow"	Guinan resided on Earth for a time, posing as a Human
Devidians	19th century	San Francisco	Humans	TOS: "Time's Arrow"	Devidians preyed on Humans in this era, though they seem to have gone completely undetected due to them existing slightly out of phase; Devidian-caused deaths were usually attributed to disease instead
Briori	1937	Earth	Three hundred Human inductees	VOY: "The 37's"
Ferengi	1947	Roswell, New Mexico	Unnamed Air Force officials	DS9: "Little Green Men"	US military apparently covered this up. The Ferengi were not 20th century Ferengi but rather time-traveling 24th century Ferengi. Other unidentified first contacts were made with the Ferengi in 2151 and 2355. (ENT: "Acquisition"; TNG: "The Battle")
Vulcans	1930, 1957, 1968, 1969, 1986, 1996, 2004	New York City, Carbon Creek, Pennsylvania, Earth orbit, San Francisco, Los Angeles, Detroit, Earth	Residents of New York (especially Edith Keeler), several inhabitants of Carbon Creek, John Christopher, a US Air Force Police sergeant, Roberta Lincoln, several Cetacean Institute visitors and Dr. Gillian Taylor, Rain Robinson, Loomis	TOS: "The City on the Edge of Forever"; ENT: "Carbon Creek"; TOS: "Tomorrow is Yesterday", "Assignment: Earth"; Star Trek IV: The Voyage Home; VOY: "Future's End"; ENT: "Carpenter Street"	According to Vulcan T'Pol, one of her ancestors and two colleagues were stranded on Earth when their ship crashed while observing Sputnik. Since Earth was a pre-warp civilization at the time, the Vulcans hid their alien nature from the locals while waiting for rescue. Of these myriad contacts, only Christopher and the seargent (whose experiences were erased from the timeline), Lincoln, and Taylor (who returned to the 23rd century with the Enterprise crew), were ever made aware of Spock's true "alien" nature.
Borg	2063	Earth orbit	Lily Sloane	Star Trek: First Contact	Time-traveling Borg from the 24th century tried to interrupt first contact between Humans and Vulcans. Lily Sloane, a 21st century Human, encountered Borg while on the USS Enterprise-E for medical treatment. (Star Trek: First Contact) Warp drive inventor Zefram Cochrane also seemed well informed on the Borg, though he never had direct contact. A second premature first contact event occurred in 2151, when several dead drones were found in the Arctic Circle and accidentally re-activated. ENT: "Regeneration"
Klingons	2369	Devidia II orbit	Samuel Clemens	TNG: "Time's Arrow, Part II"	Samuel Clemens encountered a 24th century Klingon while on the Enterprise-D
Organians	2154	Unnamed uninhabited planet	Enterprise NX-01	ENT: "Observer Effect"	The Organians erased all memory of their encounter and planned to make official first contact in about 5,000 years; however, they were forced to make first contact little more than a hundred years later, in 2267, in order to stop the Federation-Klingon War
Kelpien	2239	Kaminar	Lieutenant Philippa Georgiou	ST: "The Brightest Star"	Starfleet granted permission for Georgiou to take Saru knowing he could not return.
Paxans	2367	Planet in the Ngame Nebula	USS Enterprise-D	TNG: "Clues"	Due to the extremely xenophobic nature of this species, the crew of the Enterprise-D agreed to erase all their memories and all records of their encounter.
Vau N'Akat	2384, 2385	Crews of the Infinity and the USS Protostar	Solum	PRO: "Temporal Mechanics 101", PRO: "Brink"	Unofficial first contact between the Vau N'Akat and members of the Federation was in 2384 and 2385. In the first instance, the crew of the Infinity -- a Human Augment hybrid, a Medusan, a Tellarite, and a Vulcan -- met the Vau N'Akat Ilthuran while rescuing Gwyndala from a failed first contact mission to the planet on behalf of the Federation. Before this, the Vau N'Akat had no outside contact with any other species. Later, most of the same group rescued Ilthuran, Kathon, and Borom, the latter two being the planet's overthrown leaders, from captivity. The rescue of Ilthuran and his meeting the Federation helped Ilthuran argue his cause in the Vau N'Akat Civil War. Shortly thereafter the USS Voyager-A initiated official first contact with the planet.

Other species

Race 1	Race 2	Year	Location	Who	Source	Notes
Cardassians	Bajorans	16th century	Cardassia Prime	Unknown Bajoran lightship pioneers	DS9: "Explorers"	Prior to Benjamin Sisko's recreation of the voyage in 2371, as well as unearthing of new archaeological evidence on Cardassia Prime, Cardassians denied this ancient first contact
Talaxians	Vaadwaur	1450s	Unknown	Unknown	VOY: "Dragon's Teeth"	This became legend on Talax

Alternate timelines

First contact events where the exact date is known

Race 1	Race 2	Reality	Year	Location	Who	Source	Notes
Terran Empire	Vulcans	Mirror universe	2063	Bozeman, Montana, Earth	Dr. Zefram Cochrane	ENT: "In a Mirror, Darkly"	First contact between Humans and any alien species; similar circumstances to first contact in the main universe
Federation	Makull's species	Overwritten timeline	2371	M-class planet	USS Voyager	VOY: "Time and Again"

Species where approximate first contact dates are known

Race 1	Race 2	Reality	Year	Location	Who	Source	Notes
Federation	Cardassians	Alternate reality	before 2255	Unknown	Unknown	Star Trek	Based on the availability of Cardassian sunrises on Earth; as discussed elsewhere on this page, Cardassians had made contact with the Federation in the prime reality at the latest in the 2240s
Federation	Betazoids	Alternate reality	before 2255	Unknown	Unknown	Star Trek	Based on the availability of Jestral teas on Earth. In the prime reality, Betazoids were first mentioned one year later, in 2256.
Federation	Vau N'Akat	Alternate timeline	After 2384	Solum	Prometheus-class starship	PRO: "Preludes"	Led to the Vau N'Akat Civil War. In the current timeline, first contact was made by the USS Voyager-A in 2385.