William Manuel Morris, Baron Morris of Handsworth, OJ, DL is a former British trade union leader. He was General Secretary of the Transport and General Workers' Union from 1992 to 2003, and the first black leader of a major British trade union.

The Transport and General Workers' Union was one of the largest general trade unions in the United Kingdom and Ireland – where it was known as the Amalgamated Transport and General Workers' Union (ATGWU) to differentiate itself from the Irish Transport and General Workers' Union – with 900,000 members. It was founded in 1922 and Ernest Bevin served as its first general secretary.