Geoff Mains (1947-1989) was a leatherman and author. He is best remembered for having written the book Urban Aboriginals: A Celebration of Leather Sexuality (1984), which was later republished by Daedalus Publishing.
He was born in England and spent much of his life in Canada and later San Francisco.
Mains died of complications from AIDS.
Some of his papers are held at the GLBT Historical Society, which is in San Francisco, California, at the zip code 94103. The collection number for this collection of papers is 1989-03.
He is commemorated by two panels on the AIDS Quilt.