MA or Ma or mA may refer to:

• 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

The cuneiform sign MÁ, the sumerogram (capital letter (majuscule)) is the sign for English language "ship", or "boat", Akkadian language eleppu. When written in cuneiform texts, MÁ is preceded by the determinative for items made of wood, namely GIŠ, (GIŠ (wood Sumerogram). For ship, or boat it is written as: GIŠ.MÁ, or ^GIŠ.MÁ, .

.ma is the Internet country code top-level domain (ccTLD) for Morocco. A local registrar with a local Moroccan company as administrative contact is needed to register an .ma or .co.ma domain name. Further restrictions are imposed on the registering of other second-level domains (such as .net.ma or .gov.ma).

Ma is a Chinese family name. The surname literally means "horse". It is one of the most common family names in China. As of 2006, it ranks as the 14th most common Chinese surname in Mainland China and the most common surname within the Chinese Muslim community, specifically the Hui people, Dongxiang people, and Salar people. However, this surname should not be identified with the Korean surname 'Ma' (마) which has the same pronunciation with the Chinese 'Ma' but has its own distinct history.