The Mutant was a science fiction fanzine published in the late 1940s by Ben Singer in Detroit, Michigan, U.S.A.
The first issue was released in October 1946; the second in December 1946. For these issues, the Assistant Editor was Walter A. Coslet (The Scientifictionist), and the Associate Editors were Henry Elsner (The Scientifictionist, Thots), Joe Kennedy (Vampire), Rick Sneary (Shangri L'Affaires), Tigrina (Hymn To Satan), and Gerry Williams.
In October 1947, Singer started the numbering over again, and the zine became the Official Organ of the Michigan Science Fantasy Society. This second series ran at least eleven issues, with issue #4.4 coming out in August 1949.
Contributors of prose included Norman Ashfield (Alembic), Redd Boggs (Sky Hook), Donn Brazier (Ember, Title), Raymond L. Clancy, Bill Groover, David H. Keller, Joe Kennedy, C. Stewart Metchette, Radell Nelson, Art Rapp (Spacewarp), Hal Shapiro (Hallucinations), Bill Warren (De Profundis), H.S. Weatherby (Shivers), George H. Young (Tailgate), and the editors.
Contributors of poetry included Richard E. Avery, Redd Boggs (as Theophilus Alvor), Isabelle E. Dinwiddie, E.E. Eischied, Gerald Gordon, Con Pederson (IF!, Outlander, Snarl, Morpheus), Arthur H. Rapp, Genevieve K. Stephens (Loki), Tigrina, and Bill Warren.
Ben Singer also published a zine titled Singeroid.