- ZM stands for Zambia (according to ISO)
- ZM stands for Zusammenfassende Meldung (German: Summary Report)
- ZM stands for Zen Meditation
- ZM stands for Zu Mir (German Command)
- ZM stands for Zeitgeist Movement
- ZM stands for Zombie Mode (gaming, Counter-Strike)
- ZM stands for Zone Message
- ZM stands for Zone Marker (VHF Station Location Marker)
- ZM stands for Zettameter (10^21, one sextillion)
- ZM stands for Zeptometer (10^-21, one sextillionth)
- ZM stands for Zuhair Murad (Lebanese fashion designer)
- ZM stands for Zware Metalen (Dutch: Heavy Metal; music website and forum)
- ZM stands for Zone Mixte (French: Mixed Zone; athlete interview area)
- ZM stands for ZixMail
- ZM stands for Zolid Matters (website)
ZM