A non-commissioned officer (also known as NCO or noncom) is an enlisted member of Starfleet or another military or service organization who has not attended officer training, but functions as a lower-ranking crewman with authority over other enlisted crewmen.
In Starfleet, anyone who is a petty officer (including specialists, yeomen, and technicians) is an NCO, as they are senior to the lower crewman rank. This includes the more senior NCOs, such as chiefs.
The abbreviation NCO was used in the script of TNG: "Descent, Part II". [1] The abbreviation noncom was used in the episode DS9: "Hippocratic Oath". [2]
- Non-commissioned ranks
- Master chief petty officer
- Senior chief petty officer
- Chief petty officer
- Petty officer
- first class
- second class
- third class