Louise McKinney was a Canadian politician, temperance advocate, and women's rights activist. She was the first woman sworn into the Legislative Assembly of Alberta and the first woman elected to a legislature in the British Empire. She served in the Alberta legislature from 1917 to 1921 as a member of the Non-Partisan League. Later she was one of the Famous Five who campaigned successfully for the right of Canadian women to be appointed to the Senate. A former schoolteacher and temperance organizer, she came to Alberta in 1903 as a homesteader.