Martin Lawlor (November 27, 1868 – September 2, 1959) was an Irish-born American labor union leader.
Born in County Kerry, in Ireland, Lawlor emigrated to the United States in 1885 or 1886.
He remained secretary when the union became the National Hat Makers' Association of the United States.
In 1896, it merged into the United Hatters of North America, and Lawlor served on the new union's executive board.
[1] He led a boycott of D. E. Loewe & Company, an anti-union fur hat manufacturer, which sued him for violating the Sherman Antitrust Act.