In the history of Starfleet, there have been many notable officers holding the rank of lieutenant (or the subordinate lieutenant rank, lieutenant junior grade).
Lieutenants
United Earth Starfleet
Federation Starfleet
See also: United Federation of Planets
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A
B
- Dave Bailey
- Ballard
- Reginald Barclay
- Barnaby
- Bartel
- Julian Bashir (since 2372)
- Walter Baxter
- Gregory Bergan †
- Harry Bernard
- Boma
- John Bowler †
- Boylen †
- Branson
- Brent
- Randi Bryce
- Maxwell Burke
C
- Joseph Carey
- Carver
- Christine Chapel
- William Chapman
- Pavel Chekov (2270s)
- Chang
- Chu'lak
- Cleary
- Corrigan
- Costa
- Barbara Covington
- Curtis
D
E
F
G
H
I
J
K
L
- Geordi La Forge (until 2366)
- Jay Laprade
- Latimer
- Susanna Leijten
- Leslie
- Rose Limli
- Karen Loews
- Logan
- J. Lyman
M
- Mallory
- Marple
- Martin
- Charlene Masters †
- Larry Matson
- McConnell
- McDowell (since 2369)
- Marla McGivers †
- Minnerly †
- Marlena Moreau
- M'Ress
N
O
P
R
- Nancy Randolph
- Malcolm Reed
- Rhodes, Sandra
- Kevin Riley
- Thomas Riker
- William T. Riker
- Ro Laren
- B.G. Robinson
- Keith C. Rocha
- Esteban Rodriguez
- Mira Romaine
- David Rossi
- Rowe
S
- Saavik
- Sanders
- S. Seaborn
- Selar
- Areel Shaw
- Riley Aldrin Shepard
- Suzi Shimizu
- Shipley
- Alan Sims
- Singh
- Benjamin L. Sisko
- Al Smutko
- Spinelli
- Stadi
- Stiles
- Strek
- Hikaru Sulu
T
U
V
W
X
Y
Z
?
- Enterprise-A adjutant (USS Enterprise (NCC-1701-A) personnel)
- Enterprise-B officer(USS Enterprise (NCC-1701-B) personnel)
- Excelsior comm officer (USS Excelsior personnel)
- Grissom comm officer (USS Grissom personnel)
- Saratoga tactical officer (USS Saratoga (NCC-31911) personnel)
- Lieutenant at Captain Stadius' reception † (DS9: "If Wishes Were Horses")
- Officers marked with a dagger (†) lack visual confirmation of their rank insignia or dossier, meaning there is the possibility they were lieutenants junior grade who were referred to as "lieutenant" in conversation.
Alternate, parallel and future Starfleets
See also: alternate timeline, parallel universe, time travel
- Wesley Crusher
- Harry Kim (2378)
- Lasca
- Marlena Moreau (mirror)
- Norman
- Hoshi Sato (ENT: "Twilight")
- Hikaru Sulu (mirror)
Lieutenants junior grade
- Reginald Barclay
- Julian Bashir
- Richard Castillo
- Chandler
- Jack Crusher
- Wesley Crusher
- Ezri Dax
- Laura Derr
- Jenna D'Sora
- Duffy
- Foster
- Hector Ilario
- Daniel Kwan
- Geordi La Forge
- Linda Larson
- Sam Lavelle
- Elizabeth Lense
- Faith Levesconte
- Monroe
- Nara
- Nog
- Alyssa Ogawa
- Palmer
- Tom Paris
- Janice Rand
- Saavik
- Singh
- Orfil Solis
- Temple
- Joe Tormolen
- Aquiel Uhnari
- Van Mayter
- Worf
- The following lieutenants were referred to as "lieutenant" but wore "ensign" rank insignia at some point during TOS. This might indicate they were "junior grade" lieutenants:
Provisional
- Ayala (Star Trek: Voyager)
- B'Elanna Torres (Star Trek: Voyager)
Alternate reality
- Jean-Luc Picard (TNG: "Tapestry")