(covers information from several alternate timelines)
Commodore was a rank, originally naval and later adopted by Starfleet. As a traditional grade, commodore was the most junior flag officer rank or the most senior line officer rank, of a naval organization, under an admiral rank (usually under rear admiral) but senior to a captain. Commodores normally commanded groups of ships, as opposed to captains commanding single ships or units. Some, such as Matt Decker, commanded single Constitution class vessels. In comparison to other ranking systems, this rank was equivalent to the military brigadier or brigadier general, or the navy alternative Rear Admiral, Lower Half. They could also command starbases, such as Starbase Yorktown. (Star Trek Beyond)
In 2364, several commodores issued commands in mission orders to starship captains. These orders were read by Lieutenant Commander Data in the android's investigation into a suspected conspiracy among the higher members of Starfleet Command. (TNG: "Conspiracy")
In 2366, Geordi La Forge sarcastically referred to his Romulan captor, Centurion Bochra, as "commodore," to which Bochra eventually corrected La Forge as to his proper name and title. (TNG: "The Enemy")
Notable Starfleet commodores
- Robert April
- Richard K. Berman (Starfleet Command, 2364)
- Peter Bryce (Advanced Technologies Division, 2364)
- Matt Decker (USS Constellation)
- Anna Dixon (Starfleet Operational Support Division, 2364)
- Enwright (Starbase 6)
- Maxwell Forrest (Earth Starfleet, 2143)
- Joshua Jae (Starfleet Mission Operations Division)
- Bill Marafe (Starbase 55)
- José I. Mendez (Starbase 11)
- Oh (Chief of Starfleet Security, 2399)
- Paris (Yorktown)
- Stocker (Starbase 10)
- Stone (Starbase 11)
- Toki (Starfleet Advanced Technologies Division, 2364)
- Travers (Cestus III outpost)
- Bob Wesley (USS Lexington)
|Enlisted personnel||Commissioned officers||Generals and flag officers|
|ENS||LT JG||LT||LT CMDR||CMDR||CAPT||FCAPT||CDORE||RADM||VADM||ADM||FADM|
|2nd LT||1st LT||CAPT||MAJ||LT COL||COL||BRIG||MAJ GEN||LT GEN||GEN||MARSHAL|
|Positions:||Boatswain • Chief • Corpsman • Engineer's mate • Specialist • Technician • Yeoman||TAC • SO • 3rd • 2nd • 1st • CO • DD||Portmaster • Chief of Staff • CinC|
|Services:||Andorian • Bajoran • Cardassian • Ferengi • Jem'Hadar • Klingon • Romulan • SS • United Earth MACO • United Earth/Federation Starfleet • United States • Vulcan|
Mirror universe: Terran Empire Starfleet • Terran Empire MACO
The first mention of the rank of commodore in Star Trek: The Original Series occurred in the episode "Court Martial". Apart from its Original Series usage, a commodore is spoken of in radio traffic heard at the start of Star Trek: The Motion Picture. A commodore "movie pin" is also seen in Star Trek IV: The Voyage Home. The rank has appeared in ENT, being mentioned in "First Flight" and appearing on background characters in "First Flight", "Shockwave, Part II", "Home", and the "Demons"/"Terra Prime" two-parter. The latter featured the only female commodore seen in the prime universe until Commodore Oh in Star Trek: Picard.
The first mention of the rank of commodore in Star Trek: The Next Generation occurred in the episode "Conspiracy". La Forge calling Bochra "commodore" in "The Enemy" was the only time that the rank was ever spoken of in dialogue in the series. It was, however, listed in the rank guide used by Robert Blackman and the TNG wardrobe department.
In the United States Navy, the rank of commodore has been phased out (although its use as a title remains for a senior captain who commands a group of ships), and the lowest flag officer rank is currently referred to as "rear admiral (lower half)".
In Before Dishonor, Captain Mackenzie Calhoun informs Captain Picard that, since he is in command of a group of starships, it would be proper for him to be referred to as Commodore Picard rather than Captain Picard. The rank also features prominently in the novel Imzadi, where the rank of commodore is held by a future version of Data. Benjamin Sisko is referred to as a Commodore in Sacrifice of Angels by Charlie Reynolds.
Several non-canon reference manuals, among them the Star Trek: The Next Generation Officer's Manual, describe a five collar pip commodore insignia in use during the 24th century. Such an insignia, however, has never appeared in an actual Star Trek production.