Mar
- Earl of Mar
- Gospel of Mark
- Ju-On
- La Chinita International Airport
- LogMAR chart
- Maher (disambiguation)
- Mar (Scottish province)
- Mar (boat)
- Mar (singer)
- Mar (surname)
- Mar (title)
- Mar Abhai
- Mar Amongo
- Mar Cambrollé
- Mar Roxas
- Mar, Isfahan
- Mar, Markazi
- Mar, Russia
- Mar.
- Marathi language
- Marr (disambiguation)
- Marre (disambiguation)
- Marriott International
- Mars (disambiguation)
- Master of Arts in Religion
- Matrix attachment region
- Mauritius
- Medication Administration Record
- Memory address register
- Mer (disambiguation)
- Mesoamerican region
- Mid-Atlantic Ridge
- Minorities at Risk
- Missing at random
- Mixed Antiglobulin Reaction
- Model Audit Rule 205
- Modified Aspect Ratio
- Molapo Armoured Regiment
- Morocco
- Mouvement Action Renouveau
- MÄR