MA

MA or Ma may refer to:

In academia

Master's degree, an advanced academic degree
Master of Arts (MA), a degree at the English-speaking universities; someone admitted to this degree
- Master of Arts (Oxbridge and Dublin)
- Master of Arts (Scotland)
Marin Academy (MA), a high school in San Rafael, California
Minnehaha Academy (MA), a private high school in Minneapolis, Minnesota
Museums Association (MA), UK

Ma River, river in Asia, running through Vietnam and Laos
Ma, Tibet, a village and township in China
Madagascar (MA), FIPS 10-4 country code
Maranhão (BR-MA), part of the ISO 3166-2:BR geocode for the Brazilian state
Massachusetts (MA), United States postal abbreviation for the state
Meshwesh (Ma), an ancient Libyan (i.e., Berber) tribe from Cyrenaica
Metropolitan area (MA), a qualifying term, e.g. "Tokyo MA"
Morocco (MA), ISO 3166 country code
Ma, the mythohistoric entrepreneur for whom, tradition holds, Marang, Terengganu was denoted

MA (chemotherapy) is an acronym for Mitoxantrone + standard-dose Ara-C (cytarabine) chemotherapy regimen
Marijuana Anonymous (MA), a group recovery program aimed at marijuana addiction
Marketing authorization (MA), an authorization granted by a regulatory authority to market a new drug
Medical assistant (MA), a type of health care worker
Metabolic acidosis (MA), or (MAc), a medical condition in which the pH of body is decreased beyond the normal range
Metabolic alkalosis (MA), or (MAl), a medical condition in which the pH of body is elevated beyond the normal range
Methamphetamine, a psychostimulant

.ma, the Internet country code top-level domain (ccTLD) for Morocco
Mach number (Ma), a measure of speed compared to the speed of sound
Megaannum (Ma), one million (1,000,000) years
Mechanical advantage (MA), mechanical multiplier of input force
Mechanical alloying (MA), a technique to produce alloys
Methyl anthranilate (MA), a bird repellent
Milliampere (mA), and Mega-ampere or Megampere (MA), multiples of Ampere, a unit of electric current
Moving-average model, (MA(q)), statistics
MA (complexity), a set of decision problems that can be decided by an Arthur–Merlin protocol
Martin's axiom, an axiom in mathematical logic
a type of interface (Ma), in an IP Multimedia Subsystem
Minor actinides (MA), the actinide elements in used nuclear fuel other than uranium and plutonium
Monomethyl aniline, a solvent, chemical intermediate, and gasoline additive

"MA15+", an Australian film and video game classification meaning "Not suitable for under 15s"
"Mature audience" is a U.S. television rating system category abbreviated as TV-MA
Encyclopaedia Metallum: The Metal Archives (MA), a website devoted to heavy metal bands
Ma (Anjan Dutt album), 1998
Ma (Rare Earth album), 1973
Ma (negative space), a word of Japanese origin used in art and design
Ma (surname), a common Chinese family name
Malév Hungarian Airlines (MA), IATA designator of the former airline
Maria (Mª or Ma.), according to Spanish naming customs
Martial arts (MA), only used in combining forms such as MMA or MCMAP
Massive Attack, a British trip hop band
Master at Arms (abbreviated MA) an enlisted rating in the US Navy
MasterCard, NYSE stock symbol
Memory Alpha (MA), a Star Trek-oriented wiki
Middle Ages, a period of European history
Miss America, a beauty pageant, also the title itself
Mother, "Ma" used as a synonym
Motorcycling Australia
Orange Movement (Movimento Arancione), an Italian political party
Marvellous attack, a term used in StepMania game, it means to get only Marvellous (the highest) rankings for each step