MW
- .mw
- MUU (disambiguation)
- MUV (disambiguation)
- MVU (disambiguation)
- MVV (disambiguation)
- MW (Indian magazine)
- MW (film)
- MW (manga)
- MW-1
- MWA (disambiguation)
- MWI (disambiguation)
- Malawi
- Manhattan West
- Maple (software)
- Master of Wine
- MechWarrior
- MediaWiki
- Medium wave
- Megawatt
- Men's Wearhouse
- Merriam-Webster
- Microwave
- Midwestern United States
- Milliwatt
- Miracle Whip
- Miss World
- Mokulele Airlines
- Moment magnitude scale
- Mountain West Conference
- Museums and the Web
- Mythic Warriors
- Weight average molecular weight