| Abbreviation | Definition |
|---|---|
| MAO | Manaus, AM, Brazil |
| MAQ | Mae Sot, Thailand |
| MAR | Maracaibo La Chinita International Airport, Maracaibo, Venezuela |
| MAS | Manus Island, Papua New Guinea |
| MASSB | Malaysia Airports Sepang Sdn. Bhd. |
| MAT | Matadi, Congo |
| MAU | Maupiti Island, Society Islands |
| MAV | Maloelap, Marshall Islands |
| MAW | Malden, Missouri USA |
| MAY | Mangrove Cay, Bahamas |
| MAZ | Mayaguez, Puerto Rico |
| MBA | Mombasa, Kenya |
| MBA | The Mindlessness Of Business Administration |
| MBB | Marble Bar, Western Australia, Australia |
| MBC | M'bigou, Gabon |
| MBD | Mmabatho, South Africa |
| MBE | Monbetsu, Japan |
| MBH | Maryborough, Queensland, Australia |
| MBI | Mbeya, Tanzania |
| MBIA | Morris Bishop International Airport |