Michael F. Greene (January 1, 1884 – October 20, 1951) was an Irish-born American labor union leader.
Born in County Clare in Ireland, Greene emigrated to the United States in 1887, settling in Connecticut. He left school at the age of 13, and later completed an apprenticeship as a hatter, in Danbury, Connecticut. He joined the United Hatters of North America in 1904 and, after working in various locations, returned to Danbury and held various leadership positions in his union local.[1][2]