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 Controller. 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.
disambiguation page lists articles associated with the title GMAC.
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