The Romulan ranking system was a hierarchical collective command structure used within the Romulan Star Empire, seemingly descended from the ancient Vulcan ranking system which was also used by the Vulcan military forces until the mid-22nd century. The Tal Shiar used a different ranking system, although they were at times used interchangeably with the military ranks.
Though not part of the Romulan rank hierarchy, the title captain has been used in the Empire, but not in terms of rank. Doctor Telek R'Mor, a low ranking scientist and minor functionary from the Romulan Astrophysical Academy, initially referred to himself as "captain of the cargo vessel Talvath." (VOY: "Eye of the Needle")
- Uhlan Neral
- Sub-Commander N'Vek
- Sub-Commander Sela
- Sub-Commander Selok
- Sub-Commander Tal
- Sub-Commander T'Rul
- Sub-Commander Velal
- Sublieutenant Setal
- General Oh
- Major Rakal
|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
Given the rank of sublieutenant, there is presumably a lieutenant rank at some point in the Romulan military history. No Romulan has been referred to as a "Lieutenant" in Star Trek.
The ranks of centurion and uhlan are ancient Earth ranks (Roman and Polish respectively) not known to be used by any other Star Trek cultures. The reason for their use in the Romulan language or by the universal translator is unknown.