Science-Fiction Collector was a science fiction fanzine by John V. Baltadonis.
Science-Fiction Collector was first published in the 1930s by Morris Scott Dollins, who published 14 issues before handing over editorship to John V. Baltadonis of Philadelphia, Pennsylvania, U.S.A. He kept publishing this title into the 1940s, with more than 30 issues released.
Contributors included Jack Erman, Larry Farsaci (The Golden Atom), Joe Gilbert, Robert Madle (Fantascience Digest), MOROJO (Myrtle Douglas) (Voice of the Imagi-Nation), Mark Reinsberg, Oswald Train, Donald Wollheim (The Phantagraph).
Artwork was by John V. Baltadonis.