| Abbreviation | Definition |
|---|---|
| LSAC | Lincoln Square Athletic Club |
| LTAA | Lebanon Township Athletic Association |
| LTAA | Lehigh Township Athletic Association |
| LTAD | Long Term Athletic Development |
| LUYAA | Linganore Urbana Youth Athletic Association |
| LWAA | Lake Wylie Athletic Association |
| MAA | Marist Athletic Association |
| MAA | Merton Athletic Association |
| MAA | Millard Athletic Association |
| MAAA | Metro Association for Adapted Athletics |
| MAAA | Montreal Amateur Athletic Association |
| MAAA | Montserrat Amateur Athletic Association |
| MAAC | McPherson Academic and Athletic Center |
| MAAC | McPherson Academic and Athletic Complex |
| MAAC | Metro Atlantic Athletic Conference |
| MAAC | Montrose Athletic Advisory Council |
| MAAD | Midwest Athletic Association of the Deaf |
| MAC | Marshall Athletic Conference |
| MAC | Midwest Athletic Conference |
| MAC | Multnomah Athletic Club |