Lieutenant JG

Lieutenant Junior Grade
Higher Rank:
Lower Rank:
  • Departments
  • Teams
  • Non-Commissioned Officers
  • Enlisted Personnel
[ Source ]

Lieutenant, Junior Grade is junior commissioned officer rank, senior to an Ensign but subordinate to a full Lieutenant. It has a ranking code of O-2 and is equivalent to a First Lieutenant in the Starfleet Marine Corps. The rank insignia consists of one full pip and one hollow pip.


Lieutenant JGs are most commonly billeted as Department Heads aboard a starship or starbase. Often, a Lieutenant may hold command of a team within a department - a security detail, or engineering team, for example - most commonly comprised of non-commissioned officers and enlisted personnel.

Starfleet Officer Ranks
Ensign Lieutenant JG Lieutenant Lieutenant Commander Commander Captain Fleet Captain Commodore Rear Admiral Vice Admiral Admiral Fleet Admiral