| Acronym | Definition |
|---|
| MMDA | Metro Manila Development Authority |
| MMDA | Metropolitan Manila Development Authority (Philippines) |
| MMDA | 3-Methoxy-4,5-Methylenedioxyamphetamine (psychedelic phenethylamine) |
| MMDA | Money Market Deposit Account |
| MMDA | Madras Metropolitan Development Authority (Recently named to CMDA) |
| MMDA | Minnesota Medical Directors Association (Minneapolis, MN) |
| MMDA | Manitoba Motor Dealers Association |
| MMDA | Martin Marietta Denver Aerospace |
| MMDA | Michigan Medical Device Association |
| MMDA | Montreal Museum of Decorative Arts (Montreal, Canada) |
| MMDA | Metropolitan Municipal and District Assembly |