GMC may refer to: General Motors Corporation, an American automobile manufacturing company GMC (automobile), a division of General Motors Corporation 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 Milita… (More on Gmc)