Rimrunners is a science fiction novel written by C. J. Cherryh and set in her Alliance-Union universe, in which humanity has split into three major power blocs: Union, the Merchanter's Alliance and Earth. Chronologically, the book follows immediately after the author's award-winning Downbelow Station and is one of Cherryh's series of "Merchanter" novels. The book's cover art, by Don Maitz, won the 1990 Hugo Award for Best Original Artwork.