| Abbreviation | Definition |
|---|---|
| MACC | Memorial Athletic and Convocation Center |
| MAD | Michigan Athlete Development |
| MAD | Michigan Athletic Development |
| MAIC | Minnesota Intercollegiate Athletic Conference |
| MAM | Memphis Athletic Ministries |
| MARA | Matthews Athletic and Recreation Association |
| MASS | Muscle Athletic Sports Society |
| MBAC | Mohun Bagan Athletic Club |
| MCAA | Masters in Coaching and Athletic Administration |
| MCAA | Master's in Coaching and Athletic Administration |
| MCAA | Milford Community Athletic Association |
| MCAA | Mill Creek Athletic Association |
| MCAA | Moon Crescent Athletic Association |
| MCAA | Mosinee Community Athletic Association |
| MCAC | Metropolitan Collegiate Athletic Conference |
| MCAC | Midlands Collegiate Athletic Conference |
| MCAC | Minnesota College Athletic Conference |
| MCAL | Marin County Athletic League |
| MCAU | Missouri College Athletic Union |
| MCGC | Michigan Color Guard Circuit |