MDA
- 2,3-Methylenedioxyamphetamine
- 3,4-Methylenedioxyamphetamine
- 4,4'-Methylenedianiline
- A. P. Mda
- Collections Trust
- Cranfield School of Management
- Dalton (unit)
- IBM Monochrome Display Adapter
- Leica M1
- MDA (TV series)
- MDA (company)
- MDA framework
- MDA5
- Mada language
- Magen David Adom
- Malaysia Design Archive
- Malondialdehyde
- Maritime domain awareness
- Mass drug administration
- Mean directional accuracy
- Media Development Authority
- Medicines and Healthcare products Regulatory Agency
- Meghalaya Democratic Alliance (2003–2008)
- Meghalaya Democratic Alliance (2018–present)
- Mesocyclone
- Message delivery agent
- Metal deactivator
- Methods, data, analyses
- Microconnect distributed antenna
- Minnesota Department of Agriculture
- Missile Defense Agency
- Missionary Diocese of All Saints
- Misuse of Drugs Act (disambiguation)
- Model-driven architecture
- Moldova
- Movement for Democracy in Africa
- Multiple discriminant analysis
- Multiple displacement amplification
- Muscular Dystrophy Association
- Myanmar Dental Association
- Phases of ice
- T-Mobile MDA
- Whole-body counting
- Zakes Mda