Good Conduct Medal may refer to:

Coast and Geodetic Survey Good Conduct Medal, a decoration of the United States Coast and Geodetic Survey Good Conduct Medal (Ireland), a military decoration of the Defence Forces of Ireland Good Conduct Medal (United States), a military decoration of the United States Armed Forces Good Conduct Medal (Vietnam), a military decoration of South Vietnam 1964–1974

See also Reserve Good Conduct Medal, a military decoration of the United States Armed Forces Long Service and Good Conduct Medal, a similar decoration used in several Commonwealth states