| Acronym | Definition |
|---|
| GMMA➣Global Marijuana Music Awards |
| GMMA➣Greater Metro Manila Area (Philippines) |
| GMMA➣Guppy Multiple Moving Average |
| GMMA➣George Meany Memorial Archives (American Federation of Labor-Congress of Industrial Organizations) |
| GMMA➣Generalized Multi-Modulus Algorithm |
| GMMA➣General Motors Media Archives |
| GMMA➣Greater Miami Metro Area (Florida) |