MG, Mg, or mg and variants may refer to:
MGM Resorts International is a global hospitality and entertainment company operating destination resorts in Las Vegas, Mississippi, New Jersey and Detroit, including Bellagio, MGM Grand, Mandalay Bay and The Mirage.
MG Motor UK Limited (MG Motor) is a British automotive company headquartered in Longbridge, Birmingham, United Kingdom, and a subsidiary of SAIC Motor UK, which in turn is owned by the Shanghai-based SAIC Motor.
The MGM-31A Pershing was the missile used in the Pershing 1 and Pershing 1a field artillery missile systems.
The MGB is a two-door sports car manufactured and marketed by the British Motor Corporation (BMC), later British Leyland, as a four-cylinder, soft-top roadster from 1962 until 1980. It's details were first published on 19 September 1962. Variants include the MGB GT three-door 2+2 coupé (1965–80), the six-cylinder roadster and coupé MGC (1967–69), and the eight-cylinder 2+2 coupé, the MGB GT V8 (1973–76).
MG (Morris Garage) is an English automotive marque registered by the now defunct MG Car Company Limited, a British sports car manufacturer begun in the 1920s as a sales promotion sideline within W R Morris's Oxford city retail sales and service business by the business's manager, Cecil Kimber.