William Pollock (November 12, 1899 – March 3, 1982) was an American labor union leader.
Pollock was born in Philadelphia, to parents who had emigrated from Scotland.
He left school at the age of 14 to work in an office, before becoming a shipfitter.
He joined the United Textile Workers of America, becoming a business agent of Local 25 in 1931.
In the role, he sought to unite the various unions of textile workers, something not realised until after his retirement.