A science fiction fanzine is an amateur or semi-professional magazine published by science fiction fans, from the 1930s to the present day. They were the earliest form of fanzine.

The term 'fanzine' is now also used, by extension, to refer to fan-created magazines in other areas; the earliest rock-and-roll fanzines were edited by science fiction fans.

The fanzine movement is now well represented on the Web, see webzines.

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