MTSMA
| Acronym | Definition |
|---|---|
| MTSMA | Mountain to Sound Motorcycle Adventures (Issaquah, WA) |
| MTSMA | Music Theory Society of the Mid-Atlantic |
| MTSMA | Multi-city Transportation Systems Management Agency (California) |
| MTSMA | Motoscafo da Turismo Silurante Modificato Allargato (Italian: Modified and Enlarged Tourism Torpedo Motorboat) |
| MTSMA | Mt. Tabor School of Martial Arts |
| MTSMA | Master of Theological Studies/Master of Arts |