Leonard Tretheway Stick (7 February 1892 – 7 December 1979) was a Liberal party member of the House of Commons of Canada. He was born in St. John's, Newfoundland and became an accountant, businessman, clerk and manager by career. Leonard Stick was the first Newfoundlander to enlist during World War I, following the creation of the Newfoundland Regiment in September 1914.