UCW may refer to: UCW: Understanding Children's Work, a joint ILO, UNICEF, World Bank programme Union Carriage & Wagon, a rolling stock manufacturer in South Africa Union of Communication Workers Unit Control Word, a construct in the channels of IBM mainframes University of Worcester, formerly University College Worcester Aberystwyth University, now University College of Wales University Canada West United Campus Workers, an affiliate of the Communications Workers of America organizing higher education workers in the state of Tennessee.