| Abbreviation | Definition |
|---|---|
| L | Lincoln |
| L | Lucifer |
| LA | Lawrence Arthur |
| LB | Lady Bird |
| LB | Larry Benedict |
| LB | Larry Bird |
| LB | Lawrence Burns |
| LB | Linda Blair |
| LB | Little Bear |
| LB | Louise Brooks, actress |
| LB | Luke Bradford |
| LBJ | Lebron James |
| LBJ | Lyndon Baines Johnson |
| LC | Lamb Chop |
| LC | Leslie Charteris |
| LC | Lyman Cornelius |
| LCT | Louis Comfort Tiffany |
| LD | Lady Di |
| LDuL | Librairie Du Liban |
| LF | Lloyd Fields |