Star Trek Expanded Universe
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For Starfleet officer ranks, see Starfleet ranks (officers).
For Starfleet cadet and warrant officer ranks, see Starfleet ranks (miscellaneous).

The Starfleet rank system has a long history dating back to early space explorers of the Earth Starfleet and its predecessor naval and military forces.

Non-commissioned officers[]

Command non-commissioned officers[]

Rank MCPOSF FMCPO CMCPO
Earth Starfleet
MCPOSF (ENT)
Yellow (ENT)
FMCPO (ENT)
Yellow (ENT)
CMCPO (ENT)
Yellow (ENT)
2230s Blue (2230s)
2250s
CPO (2250s)
Yellow (2250s)
2260s Yellow (TOS)
2260s
(wraparound variant)
2200s - E (Command)
2260s
(assignment patch)
2265 - MCPOSF 2265 - FMCPO (Command) 2265 - CMCPO (Command)
2270s
MCPOSF Shoulder (TMP)
White Shoulder (TMP)
FMCPO Shoulder (TMP)
White Shoulder (TMP)
CMCPO Shoulder (TMP)
White Shoulder (TMP)
Blue Sleeve (TMP)
2270s-2350s
MCPO Sleeve (TWOK)
White Officer Sleeve (TWOK)
N/A
2350s-2360s
Chief (Early TNG)
Red (Early TNG)
2360s-2370s A
[1]
Chief (TNG)
Red (TNG)
MCPOSF (TNG)
Red (TNG)
FMCPO (TNG)
Red (TNG)
CMCPO (TNG)
Red (TNG)
2360s-2370s B
[1]
Chief (DS9-VOY)
Red (VOY)
MCPOSF (DS9-VOY)
Red (VOY)
FMCPO (DS9-VOY)
Red (VOY)
CMCPO (DS9-VOY)
Red (VOY)
2370s-2380s
MCPOSF (DS9-VOY)
Red (DS9)
FMCPO (DS9-VOY)
Red (DS9)
CMCPO (DS9-VOY)
Red (DS9)

Senior non-commissioned officers[]

Rank MCPO
[2]
SCPO CPO
Earth Starfleet
MCPO (ENT)
Yellow (ENT)
SCPO (ENT)
Yellow (ENT)
CPO (ENT)
Yellow (ENT)
2230s Blue (2230s)
2250s
CPO (2250s)
Yellow (2250s)
2260s Yellow (TOS)
2260s
(wraparound variant)
2200s - E (Command)
2260s
(assignment patch)
2265 - MCPO (Command) 2265 - SCPO (Command) 2265 - CPO (Command)
2270s
MCPO Shoulder (TMP)
White Shoulder (TMP)
SCPO Shoulder (TMP)
White Shoulder (TMP)
CPO Shoulder (TMP)
White Shoulder (TMP)
Blue Sleeve (TMP)
2270s-2350s
MCPO Sleeve (TWOK)
White Enlisted Sleeve (TWOK)
SCPO Sleeve (TWOK)
White Enlisted Sleeve (TWOK)
CPO Sleeve (TWOK)
White Enlisted Sleeve (TWOK)
2350s-2360s
Chief (Early TNG)
Red (Early TNG)
2360s-2370s A
[3][1][4]
Chief (TNG)
Red (TNG)
MCPO (TNG)
Red (TNG)
SCPO (TNG)
Red (TNG)
CPO (TNG)
Red (TNG)
2360s-2370s B
[1]
Chief (DS9-VOY)
Red (VOY)
MCPO (DS9-VOY)
Red (VOY)
SCPO (DS9-VOY)
Red (VOY)
CPO (DS9-VOY)
Red (VOY)
2370s-2380s
MCPO (DS9-VOY)
Red (DS9)
SCPO (DS9-VOY)
Red (DS9)
CPO (DS9-VOY)
Red (DS9)
Master chief petty officer
Senior chief petty officer
Also known as "senior chief specialist".
Chief petty officer

Junior non-commissioned officers[]

Rank PO1 PO2 PO3
Earth Starfleet
PO1 (ENT)
Yellow (ENT)
PO2 (ENT)
Yellow (ENT)
PO3 (ENT)
Yellow (ENT)
2230s Blue (2230s)
2250s Yellow (2250s)
2260s Yellow (TOS)
2260s
(wraparound variant)
2200s - E (Command)
2260s
(assignment patch)
2265 - PO1 (Command) 2265 - PO2 (Command) 2265 - PO3 (Command)
2270s
PO1 Shoulder (TMP)
White Shoulder (TMP)
PO2 Shoulder (TMP)
White Shoulder (TMP)
PO3 Shoulder (TMP)
White Shoulder (TMP)
Blue Sleeve (TMP)
2270s-2350s
PO1 Sleeve (TWOK)
White Enlisted Sleeve (TWOK)
PO2 Sleeve (TWOK)
White Enlisted Sleeve (TWOK)
N/A
2350s-2360s Red (Early TNG)
2360s-2370s A
[3][1][4]
Red (TNG)
PO1 (TNG)
Red (TNG)
PO2 (TNG)
Red (TNG)
PO3 (TNG)
Red (TNG)
2360s-2370s B
[1]
Red (VOY)
PO1 (DS9-VOY)
Red (VOY)
PO2 (DS9-VOY)
Red (VOY)
PO3 (DS9-VOY)
Red (VOY)
2370s-2380s
PO1 (DS9-VOY)
Red (DS9)
PO2 (DS9-VOY)
Red (DS9)
PO3 (DS9-VOY)
Red (DS9)
Petty officer first class
Also known as "technician first class", etc.
Petty officer second class
Also known as "specialist second class", etc.
Petty officer third class
Also known as "yeoman third class", etc.

Crewmen[]

Rank CN CA CR
Earth Starfleet
CN (ENT)
Yellow (ENT)
CA (ENT)
Yellow (ENT)
Yellow (ENT)
CR (ENT)
Yellow (ENT)
2230s Blue (2230s)
2250s Yellow (2250s)
2260s Yellow (TOS)
2260s
(wraparound variant)
2200s - E (Command)
2260s
(assignment patch)
2265 - CN (Command) 2265 - CA (Command) 2265 - CR (Command)
2270s
CN Shoulder (TMP)
White Shoulder (TMP)
CA Shoulder (TMP)
White Shoulder (TMP)
CR Shoulder (TMP)
White Shoulder (TMP)
Blue Sleeve (TMP)
2270s-2350s
CN Sleeve (TWOK)
White Enlisted Sleeve (TWOK)
N/A
2350s-2360s Red (Early TNG)
2360s-2370s A
[1][4]
Red (TNG)
CN (TNG)
Red (TNG)
CA (TNG)
Red (TNG)
CR (TNG)
Red (TNG)
2360s-2370s B
[1]
Red (VOY)
CN (DS9-VOY)
Red (VOY)
CA (DS9-VOY)
Red (VOY)
CR (DS9-VOY)
Red (VOY)
2370s-2380s
CN (DS9-VOY)
Red (DS9)
CA (DS9-VOY)
Red (DS9)
CR (DS9-VOY)
Red (DS9)

See also[]

References[]

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Up until the introduction of specialized insignia in 2372, crewmen and petty officers wore no rank insignia while chief petty officers wore one hollow pip. When the new insignia were introduced, however, Crewmen Recruits did not have insignia.
  2. Most rank schemes did not have separate MCPO grades. Only the 2260s assignment patches had separate grades.
  3. 3.0 3.1 Maquis crewmembers on the USS Voyager who were assigned enlisted roles wore a provisional lozenge with one black slash.
  4. 4.0 4.1 4.2 Also seen in parallel 2370s.

External links[]

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