CMTC may refer to:
Canadian Manoeuvre Training Centre, a Canadian Army training formation located at CFB Wainwright, Alberta. Cutis marmorata telangiectatica congenita, a rare congenital vascular disorder often affecting the skin first described by Cato van Lohuizen. Central del Movimiento de Trabajadores Costarricenses, a trade union centre in Costa Rica Cytoplasmic Microtubule Complex, the network of microtubules within the cytoplasm of a cell. Citizens' Military Training Camp, summer military training programs of the United States, 1921-1940