Sir Joseph Hallsworth (2 December 1884 – 19 July 1974) was a British trade union leader.
Born in Audenshaw, near Manchester, Hallsworth began working in 1902 as a clerk for the Amalgamated Union of Co-operative Employees.
He soon became the union's assistant secretary, and also became active in the Labour Party, standing unsuccessfully for Stretford at the 1918 general election.
He served on a large number of bodies, including the International Labour Organization and the Central Price Regulation Committee during World War II, and as President of the International Federation of Commercial, Clerical, and Technical Employees.
[1] In 1947, NUDAW merged to form the Union of Shop, Distributive and Allied Workers, and Hallsworth was its first Secretary-General, serving for two years.