Janus was a science fiction fanzine published in Madison, Wisconsin, U.S.A. in the 1970s.
Janus was edited by Janice Bogstad for the first four issues, who was then joined by Jeanne Gomoll as co-editor. Their fanzine was one of the first feminist sf publications.
The editors met at The Madison SF Group, a scinece fiction group founded by Hank Lutrell, Lesleigh Lutrell, Jan Bogstad, Phil Kaveny and Tom Murn in 1974.
Contributors included John Bartelt and Tom Murn. Interviews with Suzy McKee Charnas and Amanda Bankier (The Witch and the Chameleon) were featured.
Janus was nominated for the Hugo Award for best Fanzine from 1978 through to 1980.