The current Starfleet uniform consists of a black tunic with branch-coloured shoulders, and a 1cm wide branch colour stripe on the wrist. The tunic is worn with matching black trousers and black ankle-height boots. Branch colours are red for Command, gold for Operations, blue for Sciences and green for Ground Forces. All personnel within a department wear the branch colour of the parent branch.

Variants include a one-piece black jumpsuit with coloured shoulders favoured by many female officers. Other specialised uniform items are available, including cold-weather, desert and athletic wear. Some of the uniform options and variants in current service are shown below. All uniforms are shown in Command branch colours unless otherwise specified.

Rank insignia is worn on the right collar of the tunic.

Officers wear a series of silver and silver-rimmed black pips. Flag ranks wear smaller silver pips surrounded by a black field.

Provisional rank insignia is worn by non-Starfleet personnel who have been been attached to a Starfleet unit in an officer capacity, and is worn with Starfleet uniforms. Members of other armed forces attached to Starfleet units usually wear their own rank insignia, and often wear their own service uniforms.

Cadets at Starfleet Academy wear a series of vertical silver bars denoting their academic year. Fourth year cadets serving on their cadet cruise are addressed as midshipmen.