Medtrek is a media science fiction fanzine, edited by Susan Smith-Clarke, and published by Medtrek SF Media Con.
Medtrek consists of work by the finalists in the fiction and poetry competitions for the Australian National Media Convention. It features fan fiction inspired by the television series Blake's 7, Star Trek (the original series), Star Trek: The Next Generation, and other fandoms. The first issue was published in 1982. Four issues were released, the last in 1991.
Featured writers of fiction have included Sue Bursztynski, Kerrie Hanlon, Narrelle Harris (Inconsequential Parallax), Edwina Harvey (The Australian Science Fiction Bullsheet), Yvonne Hintze, Merridy Johnson, Stephanie Kane, Shayne McCormack, T.A. Morris, and Virginia Wurth.
Featured writers of poetry have included Sheila Tracy.
Featured artists have included Linda Cox Chan, Ruth Dick-Smith, Merridy Johnson, Val Rogers, John Shave, and Julie Vaux.
Medtrek also produced an electonic fanzine featuring zine reviews and event news during the 1990s.
Susan Smith-Clarke also published the fanzines Beyond Antares and Chronicles.