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(covers information from several alternate timelines)

For all ranks commonly referred to as admiral in Starfleet, please see Flag officer.

Admiral was a flag officer rank above vice admiral but below fleet admiral, the equivalent of which was used by the service organizations including Earth's Royal Navy, as well as in Starfleet ranks and Romulan ranks. (TNG: "The Defector", et al.) The Cardassian Union's rank of legate was comparable to an admiral. (DS9: "The Maquis, Part II")

Admirals by grade

Federation Starfleet

Prime universe
Alternate reality
Alternate future timelines

Royal Navy

Romulan military

Terran Empire Starfleet

Admirals by title

United Earth Starfleet

Federation Starfleet

Prime universe
Alternate reality
Alternate future timeline


See also

Background information

TNG Season 1 introduced three unique, seemingly sequential, yet undefined admiral insignia designs that appeared in "Too Short a Season", "Coming of Age", "Conspiracy", and in archive footage from the aforementioned in "Shades of Gray".

Admiral Jameson's insignia (2364)
Admirals Jameson and Quinn's insignia
Admiral Savar's insignia (2364)
Admiral Savar's insignia
Admiral Aaron's insignia (2364)
Admiral Aaron's insignia

All of the admirals seen wearing this style of insignia (Savar, Aaron, Quinn, and Jameson) were only referred to by their "admiral" title, with Quinn being described as a "senior admiral", despite of having the lowest apparent grade insignia.

Following the first season, Robert Blackman's production notes during described this rank as "4 Starfleet Admiral, gold framed bar w/4 dots." [1](X)

The Star Trek Encyclopedia (3rd ed., p. 210-211) labeled this rank as "admiral" referring to the late 2270's-2350's uniforms, and "admiral, four star" referring to its use on 2350s-2370s, late 2360s-early 2370s, and 2370s uniforms.

Star Trek: The Magazine Volume 2, Issue 10, p. 99, mistakenly identified the late 2270's-2350's rear admiral insignia as the admiral insignia.

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