| Acronym | Definition |
|---|
| MDMA | 3,4-Methylenedioxymethamphetamine (Ecstasy) |
| MDMA | Multi Direct Memory Access |
| MDMA | Multi Dimensional Multiple Access |
| MDMA | Midwest Direct Marketing Association |
| MDMA | Museum Domain Management Association |
| MDMA | Movimento Di Massa Antiproibizionista |
| MDMA | Meter Data Management Agent (electric utilities) |
| MDMA | Multi-Disciplinary Monitoring Agency (India) |
| MDMA | Medical Devices Manufacturers Association |
| MDMA | Multithreaded Daemon for Multimedia Access |
| MDMA | Many Delinquent Modern Anarchists (computer virus) |
| MDMA | Minnesota Donkey and Mule Association |