Warhoon is a science fiction fanzine by Richard Bergeron.
Warhoon was initially published in New York, U.S.A. beginning in 1952. Later the editor moved to Puerto Rico, which is where this fanzine was published in the 1970s and 1980s. Some issues were distributed through Spectator Amateur Press Society.
Richard Bergeron was well known in the SF fanzine world as an artist and did illustrations and covers for many zines.
Warhoon number 28 was published in hard cover in 1978 and is a complete anthology of the writings of Walter A. Willis, editor of Slant and Hyphen. The 614 pages of this issue contain all of Willis' columns; "The Harp That Once Or Twice", "The Harp Stateside", and "Twice Upon A Time", as well as other writing.
Contributors to Warhoon include Brian Aldiss, John Baxter, John Berry (The Damned Patrol), Redd Boggs (Sky Hook), Terry Carr (Innuendo, Lighthouse), Philip Jose Farmer, Peter Graham, Patrick Nielsen Hayden (Izzard), Virginia Kidd (as "Virginia Blish"), David Langford (Ansible), R.A.W. Lowndes, Vincent Omniaveritas, Tom Perry, Alva Rogers, Nancy Share Rapp (Ignatz, Summer Torrents), Bob Shaw, Bob Tucker (Le Zombie), Harry Warner, Jr. (Horizons), Charles Wells (Fiendetta), Ted White, and Walt Willis.
Columnists included John Baxter, James Blish, Terry Carr, Robert Lowndes, and Bob Shaw.
Warhoon won the 1962 Hugo Award for Best Fanzine.