MA

Fictional characters

• Ma (The Lion King), a main character in the animated film Lion King 1½
• Ma Beagle, in the Donald Duck universe
• Ma Hunkel, a DC Comics character
• Ma and Pa Kettle, a 1940s and 1950s comic film character
• Ma Perkins, an American radio soap opera (1932-1960)
• The Ma family, in the 2014 South Korean television series 4 Legendary Witches
• Ma Junior, Piccolo's alias in the 23rd Tenkaichi Budōkai

Music

Other uses in arts and entertainment

• Ma (2019 film), a horror film starring Octavia Spencer and Luke Evans
• Ma (2015 film), a drama film written and directed by Celia Rowlson-Hall
• Ma (negative space), a Japanese concept of negative space
• Memory Alpha, a Star Trek-oriented wiki
• Miss America, a beauty pageant, and the title awarded at said pageant
• MA (journal), a Hungarian art magazine

Names

• Ma, an informal synonym for mother
• Ma (surname) (马/馬), a common Chinese family name
• Ma (surname 麻), a less common Chinese surname
• (Mª or Ma.), according to Spanish naming customs#Maria

Groups

• Ma clique, a group of warlords from 1919 until 1928
• Mạ people, a Vietnamese ethnic group
• Meshwesh, an ancient Libyan tribe

Individuals

• Ma Barker (1873–1935), American criminal and mother of criminals
• Ma Beland (1870–1952), American drug trafficker
• Miriam A. Ferguson (1875–1961), twice governor of Texas
• Harriet Pullen (1860–1947), American entrepreneur and hotelier
• Ma Rainey, stage name of American blues singer Gertrude Pridgett (1886–1939)
• Ma Anand Sheela, Osho movement leader convicted of multiple attempted murders

Chemistry

• Methyl anthranilate, used as a bird repellent
• Mesaconitine, a toxin from plants

Health and medicine

• MA (chemotherapy), a chemotherapy regimen
• Marijuana Anonymous, a group recovery program
• Medical assistant, a type of health care worker
• Metabolic acidosis, a medical condition characterized by increased acid production
• Metabolic alkalosis, a medical condition with an elevated pH level

Mathematics

• MA (complexity), a set of decision problems that can be decided by an Arthur–Merlin protocol
• Martin's axiom, an axiom in mathematical logic
• Moving-average model (MA), in statistics

Measurements

• Mach number (Ma), a measure of speed compared to the speed of sound
• Megaannum (Ma), one million years
• Megaampere (MA), a multiple of the SI unit of electric current, the ampere
• Milliampere (mA), a multiple of the SI unit of electric current, the ampere

Other uses in science and technology

• .ma, the Internet domain for Morocco
• Mechanical advantage, mechanical multiplier of input force
• Mechanical alloying, a technique to produce alloys
• Ford MA, a 2002 concept car
• Nissan MA engine, an automotive engine introduced in 1982