| Abbreviation | Definition |
|---|---|
| LASAM | Laboratory Animal Science Association of Malaysia |
| LAT | Laboratory Animal Technician |
| LATR | Large Animal Technical Rescue |
| LB | Lady Bug |
| LBAE | Long Beach Animal Emergency |
| LBAM | Light Brown Apple Moth |
| LBBA | Louisiana Beefmaster Breeders Association |
| LBHD | Lower Brule Herd Development |
| LCAF | Large Confined Animal Facilities |
| LEYE | Lesser Yellowlegs |
| LFAW | League For Animal Welfare |
| LFDA | La Fondation Droit Animal |
| LKAA | Lietuvos Kiauliu Augintoju Asociacija (Lithuanian: Lithuanian Pig Association; est. 1997; Vilnius, Lithuania) |
| LLA | Living and Learning with Animals |
| LLAC | Laughing Like A Chicken |
| LLAH | Loma Linda Animal Hospital |
| LLNB | Lesser Long Nosed Bat |
| LLTA | Long Live The Animals |
| LMAS | Louisville Metro Animal Services |
| LOCA | Lots Of Cute Animals |