| Abbreviation | Definition |
|---|---|
| LAT | License Athletic Trainer |
| LAT | Licensed Athletic Trainer |
| LATAC | Lentilly Arbresle Tour Athletic Club |
| LBAA | Long Branch Athletic Association |
| LBAC | Leighton Buzzard Athletic Club |
| LBAC | Louis Brown Athletic Center |
| LBAL | Loomis Basin Athletic League |
| LCAC | Leicester Coritanian Athletics Club |
| LEAD | Leadership Education Athletics Dreams |
| LEAD | Leadership Empowerment Athletic Development |
| LEAP | Leadership Education and Athletics in Partnership |
| LEAP | Leadership Educational Athletic Partnership |
| LEAP | Let Everyone Actively Participate |
| LIAS | Limerick International Athletics Squad |
| LLAC | Lake Lutheran Athletic Conference |
| LMAC | La Madrona Athletic Club |
| LPAA | Lawrence Park Athletic Association |
| LPAA | Lower Pottsgrove Athletic Association |
| LRAC | Little Rock Athletic Club |
| LSAC | LakeShore Athletic Club |