William Austin Calvin (February 5, 1898 – January 27, 1962) was a Canadian-born American labor union leader.
Born in Saint John, New Brunswick, Calvin became a boilermaker, working on the Canadian Pacific Railway.
In 1929, he won election as a vice-president of the international union, and then in 1933, he became secretary-treasurer of the Metal Trades Department of the American Federation of Labor.
In 1951, he moved to work for the National Production Authority, but he returned to the boilermakers in 1953, to become the assistant to president Charles J. MacGowan.
[2] Calvin also served as director of the Fund for Peaceful Atomic Development, and on the Railway Labor Executives' Association.