Athletics Abbreviations and Acronyms
- MRPMiyog Role Playing
- MRWMiniraceways Slot Car Speedway
- MSBMind, Spirit, and Body
- MSBAMassachusetts Striped Bass Association
- MSCMinnesota Ski Council
- MSCMontreal Soaring Council
- MSCCMaster Strength and Conditioning Coach
- MSCCMichigan Sports Car Club
- MSCIMichigan Speech Coaches, Inc.
- MSCLMassachusetts State Cricket League
- MSEMotor Sports Edition
- MSGRMassager
- MSIIMartial Science Institute International
- MSLMechanized Skirmish League
- MSPMassive Single Player
- MSPMost Sporting Player
- MSRManomet Street Racer
- MSRAMetropolitan Squash Racquets Association
- MTFMenstennisforums.Com
- MTFMotorcyvle Tourer's Forum
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