"Schizogeny" is the ninth episode of the fifth season of the science fiction television series The X-Files. It premiered on the Fox network on January 11, 1998. It was written by Jessica Scott and Mike Wollaeger, directed by Ralph Hemecker, and featured guest appearances by Bob Dawson, Myles Ferguson, Katharine Isabelle, Chad Lindberg, and Sarah-Jane Redmond. The episode is a "Monster-of-the-Week" story, unconnected to the series' wider mythology.