The AMC Spirit is a subcompact marketed by American Motors Corporation (AMC) from 1979 until 1983 as a restyled replacement for the Gremlin. The Spirit shared the Gremlin's platform and was offered in two hatchback variations, each with two doors – marketed as sedan and liftback. Manufactured by AMC in Wisconsin and Ontario, as well as under license in Mexico, the Spirit was also marketed from 1981 through 1983 model years as the Eagle SX/4 with four-wheel drive.

Performance versions of the AMC Spirit competed in road racing. The B.F. Goodrich tire company-sponsored a two-car team of Spirit AMXs in the 24 Hours Nürburgring race track. The AMXs were the first American entries and they finished first and second in their class out of a 120-car field in this grueling 14.1-mile (22.7 km), 176 turn road race. AMC Spirits were also privately campaigned in International Motor Sports Association (IMSA) Champion Spark Plug Challenge and Racing Stock Class events, as well as in drag racing.