The following is a list of ambassadors.
Andoria (pre-Federation)[]
- Ambassador to first Babel Conference
- Thoris (to Earth)
Tellar (pre-Federation)[]
Vulcan (pre-Federation)[]
United Federation of Planets[]
- Alkar, Ves (ambassador-at-large)
- April, Robert (ambassador-at-large)
- Archer, Jonathan (to Andoria, 2169 – 2175)
- Dax, Curzon (to the Klingon Empire)
- Fox, Robert (to Eminiar VII)
- Gav
- Hawkins (to Mordan IV)
- K'Ehleyr (to the Klingon Empire)
- Krajensky
- Lojal
- Neelix (ambassador-at-large between the United Federation of Planets and the Delta Quadrant)
- Odan (to the two moons of Peliar Zel)
- Rillak, Laira
- Talbot, St. John (to Nimbus III)
- Sarek
- Saru
- Shras
- Spock (special envoy to Qo'noS, 2293, later unofficial secret envoy to Romulus)
- Taxco
- T'Pel (to Romulan Star Empire)
- Troi, Lwaxana
- Vadosia
- Worf (to the Klingon Empire, 2376 – 2379)
Klingon Empire[]
- Kell
- Kor (to Vulcan)
- Korrd (to Nimbus III)
- Klingon Ambassador (to the Federation)
Romulan Star Empire[]
- Caithlin Dar (to Nimbus III)
- Nanclus (to the Federation)
- Pardek (to Khitomer)
Other[]
- Briam (Krios to Valt Minor)
- Byleth (Iyaaran to Federation)
- E'Tyshra (T'Lani III)
- Falow (Wadi to Federation)
- Hodin (Gideon to Federation)
- Kollos (Medusan to Federation)
- Loquel (Iyaaran to Federation)
- Mauric (Kes to Federation)
- O'Zaal (co-coordinator of the Antarian Trans-stellar Rally)
- Petri (Troyius to Elas)
- Riva (Ramatis III)
- Sharat (Kellerun)
- Treen (Kradin)
- Voval (Iyaaran to Federation)
Unnamed ambassadors[]
- Catullan ambassador
- Coridanite ambassador
- Minicoy ambassador
- Tholian ambassador (known to Benjamin Sisko)
- Tholian ambassador (to Romulus)
Alternate timeline / alternate reality ambassadors[]
- Alexander Rozhenko (to Klingon Empire)
- Jean-Luc Picard (to Romulan Empire)
- Sarek