See also Appendix:Variations of "ma"
- (metrology) Symbol for the megaampere, an SI unit of electrical current equal to 106amperes.
- The ISO 3166-1 two-letter (alpha-2) code for Morocco.
- Massachusetts, a state of the United States of America.
- Master of Arts (degree).
- Mature adult (audience).
- Maluku, a province of Indonesia.
- Maranhão, a state of Brazil.
- Abbreviation of Maranhão. (Brazilian state)