Paradox was a science fiction fanzine published and edited by Frank Wilimczyk.
Paradox was published in the early 1940s. At least five issues were released.
Contributors of art work included Jim Mooney, among others.
Contributions of writing included book reviews by Phil Bronson (Scienti-Comics, Peon), and "Behind the Planet Stories Pulp Editor Door", by Larry Shaw, then editor of the pulp magazine Planet Stories, and the fanzine Leprechaun.
Letters came from Art Widner, among others.