The Moroccan Workers' Union (UMT) is the oldest national trade union center in Morocco. It was formed in 1955. With a membership of 306,000 the UMT represents workers in both the private and public sectors of the economy.

In 1960 the General Union of Moroccan Workers (UGTM) split from the UMT. In 1963 the UMT itself lapsed its membership in the International Confederation of Free Trade Unions, after the formation of the All-African Trade Union Federation, as a result of the AATUF's opposition to African membership in non-African organisations. In 1990 the UMT re-affiliated itself to the ICFTU (now the International Trade Union Confederation).