- For Starfleet officer ranks, see Starfleet ranks (officers).
- For Starfleet enlisted ranks, see Starfleet ranks (enlisted).
Cadet ranks are held by those attending Starfleet Academy during their training to become commissioned officers.
- A recruit was an officer-in-training in the 2140s. They were trained at Starfleet Command.
- Fourth-year cadet
- Cadets of this rank are fourth-year students at Starfleet Academy. After graduation, these Cadets are granted the rank of Ensign.
- Third-year cadet
- Cadets of this rank are third-year students at Starfleet Academy.
- Second-year cadet
- Cadets of this rank are second-year students at Starfleet Academy. Cadets at this rank take part in field training at a space station or outpost.
- First-year cadet
- Cadets of this rank are first-year students at Starfleet Academy.
Enlisted personnel attending Starfleet Academy for officer candidacy wear normal insignia.
|Rank||ENS trainee||LTJG trainee||LT trainee|
In the Starfleet rank system used between 2278 and 2350, trainees were given ranks as they underwent special training.
|Bajoran | Cardassian | Klingon | MACO | Romulan|
Starfleet (Officers, Enlisted, Misc., Alt.) | Terran Starfleet | Vulcan
|Dominion Marines | Kai | Kellarian | Lyran | Rellazi | So'jan | UESPA|
- The Earth Starfleet used grades of recruits instead of cadets.