The admiral military rank usually is amongst the highest rank officers can obtain in a naval service organization amongst several civilizations. The rank below admiral is usually captain, and the difference between the ranks is whereas a captain usually is the commanding officer of one starship, starbase or unit, an admiral is the commanding officer of several starships (or a fleet or armada of ships). In ground-based militaries, the equivalent of this rank would usually be a general. Earth Starfleet, Federation Starfleet, the Romulan Star Empire and the Klingon Empire all use this rank in some form. The Cardassian equivalent is legate.

Ar'nal was a Romulan rank that was roughly equivalent to the rank of admiral used by other militaries. (The Dominion War Sourcebook: The Fires of Armageddon)

Starfleet admiralEdit

Starfleet uses several grades of this rank. The different grades are sometimes referred to by the number of "stars" on the respective grade's insignia. (USS Baldwin: "Frontiers")

The grades are:

• rear admiral, lower half or commodore (1 star);
• rear admiral (2 stars);
• vice admiral (3 stars);
• admiral (4 stars); and
• fleet admiral (5 stars).

Starfleet insigniaEdit

22nd century	2230s

2250s	2265-2270s	Early 2270s (Shoulders/Sleeves)	Late 2270s-2350s (Shoulders/Sleeves)

2350s-2360s	2360s-2370s service uniform	2360s-2370s duty uniform	2373-

Alternate realities Edit

2250s	2380s-2400s	2390s	29th century

Romulan admiraltyEdit

Like Starfleet, the Romulan Star Navy used several grades of the rank. (RIS Bouteina; Romulan names indicated with their Starfleet equivalents in brackets)

• Galae'Enriov (fleet admiral)
• Khre'Enriov (admiral)
• Enriov (vice admiral)
• Khre'Riov (rear admiral; either half)

Romulan insigniaEdit

Romulan Star Navy 23rd century	Romulan Star Navy 24th century

External linksEdit

• Admiral article at Memory Alpha, the canon Star Trek wiki.
• Admiral article at Wikipedia, the free encyclopedia.