- Fred Lacey
- Sadie Laroque
- Donald Law
- Garda Law
- Keith Law
- Norman Law
- Priscilla Law
- Edwin Lawlor
- Colleen Le Cheminant
- Blaine Leavitt
- Julie Leavitt
- Justin Leavitt
- LaMont Leavitt
- Lucille Leavitt
- Marguritte Leavitt
- Susan Leavitt
- Flora Lee
- June Leggott
- Don Lehman
- Garth Leishman
- LaRand Lenz
- Patricia Lenz
- Joseph Dean Litchfield
- Beverley Little Bear (Grier)
- Mickey Duane Little Bear
- Morris Little Bear
- Patrick Little Bear
- Ronald Tyler Little Bear
- Ida, Little Man
- Clarence Little Shields
- Clara Livingstone
- Michael Livingstone
- Evelyn Locker (Eagle Speaker)
- Norman Long
- Janet Longbotham
- Courtney Loose
- Kenneth Loose
- Jack Lowe
- Alvine Low Horn
- Sylvia Lowhorne
- Genevieve Low Horn
- Delaine Lowry
- Henry Dale Lowry
- Calvin Lybbert
- Grace Lybbert
- Lyle Dean Lybbert
- Malin Lybbert
- Myron Lybbert
- Ruby Elaine Lybbert