GMC may refer to: General Motors, an American automobile manufacturing company GMC (automobile), a division of General Motors formerly named "GMC Truck" Game Maker Community, the official forum of Game Maker, a game creation tool Ganglion mother cell, in the developing nervous system that divides once to produce two neurons General Medical Council, the UK regulatory body for the medical professions Generalized Method of Cells, a micromechanics theory Georgia Military College, in Milledgeville,… (More on Gmc)