Captain was the rank commonly held by Vulcan starship commanders and other senior officers. (ENT: "Breaking the Ice", "Stigma") In the 1950s, Vulcan ship captains wore an angular-swirl insignia mirrored on the left and right collar, and additional dark striping from other officers on their uniform. (ENT: "Carbon Creek")
- Major Talok
- Subaltern Lorot
|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|
|Services:||Andorian • Bajoran • Cardassian • Ferengi • Human (CSA • SS • UE MACO • USA) • Jem'Hadar • Klingon • Romulan • United Earth/Federation Starfleet • Vulcan|
Mirror universe: Terran Empire Starfleet • Terran Empire MACO
The Vulcan rank system seems to have been similar to Romulan ranks, including the use of sub-commander and sublieutenant.
The ranks of commander and lieutenant have never been referenced on-screen.