John Coefield (June 18, 1869 – February 8, 1940) was an American labor union leader.
Born in Franklin, Pennsylvania, Coefield completed an apprenticeship as a plumber.
[1] In 1907, Coefield became business agent of the San Francisco Building Trades Council, and vice president of the California Building Trades Council.
He became a vice-president of the UA in 1911, and then in 1919 became its president, relocating to Chicago.
He died suddenly in 1940, in New York City, after attending a dinner; when found, his body had been robbed.