Uncanny Magazine is an American science fiction and fantasy online magazine, edited and published by Lynne M. Thomas and Michael Damian Thomas, based in Urbana, Illinois. Its mascot is a space unicorn.

A science fiction magazine is a publication that offers primarily science fiction, either in a hard-copy periodical format or on the Internet. Science fiction magazines traditionally featured speculative fiction in short story, novelette, novella or novel form, a format that continues into the present day. Many also contain editorials, book reviews or articles, and some also include stories in the fantasy and horror genres.