Master chief petty officer (MCPO) is an enlisted rank in Starfleet, above a senior chief petty officer. It is the highest enlisted rank in Starfleet.
Command division MCPO embroidery, circa 2260s.
In the 2260s, a Starfleet master chief would wear an embroidered uniform rank insignia of an enclosed chief's chevron insignia with three stripes beneath it, below the assignment patch on certain Starfleet uniforms. (FASA RPG module: Cadet's Orientation Sourcebook)
- While the FASA RPG manual showed a variety of enlisted insignia, none were ever used in a canon or licensed TOS-era production or publication.
By the 2280s, a master chief wore an insignia pin in normal unform wear, a silver ring with an enlarged upper segment and a gold diamond within. A lower grade, MCPO second class, had a similar insignia, of the ring and diamond without the upper segment. (ST reference: The Star Trek Encyclopedia)
Positions and lists
Federation Starfleet
Operations division
Chronology
Dates listed are first appearance or mention at that rank except as noted. Personnel are Starfleet except as noted.
2379
Connections
- Master chief petty officer article at Memory Alpha, the wiki for canon Star Trek.
| Enlisted ranks | Commissioned ranks | Flag ranks | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Earth SF | CREW | PO2
|
CPO
MCPO |
ENS | LT | CMDR | CAPT
|
CDORE | RADM / 2ADM | VADM / 3ADM | 4ADM | FADM / 5ADM
| ||||
| Starfleet & SFMC | ENS JG
|
LT JG | LT | LT CMDR | CDR | CDORE
| ||||||||||
| PVT | CPL | SGT
|
SUBLT
2ND LT |
1ST LT | CAPT | MAJOR | LT COL | COL | BRIG | GEN | ||||||
