GMAC

GMAC may refer to:

• GMAC, the General Motors Acceptance Corporation, now Ally Financial.
• GMAC Insurance, now National General Insurance
• GMAC Real Estate
• GMAC ResCap (Residential Capital), which includes GMAC Mortgage and online home lender Ditech
• The Graduate Management Admission Council, an international association of business schools.
• Galois Message Authentication Code, a type of cryptographic message authentication code
• GMAC, Giga Multiply-ACcumulate operations (GMACs : Giga Multiply-ACcumulate operations per second)
• A nickname for Northern Irish professional Golfer Graeme McDowell
• The GMAC Bowl, a sponsored game of college level American football, now known as the Dollar General Bowl.
• GMA Canada is the Gospel Music Association of Canada (formerly the CGMA)
• The GMAC massacre, a 1990 shooting by James Edward Pough in a car loan office in Florida.
• GMAC, Gigabit Media Access Controler. For handling an Ethernet physical transceiver (Ethernet PHY (chip). See also Gigabit_Ethernet.

The term, when rendered as G-MAC, can also refer to:

• The Great Midwest Athletic Conference, a U.S. college athletic conference established in 2011 and starting competition in 2012.