Xenium was a science fiction fanzine by Mike Glicksohn.
Xenium was begun as an apazine for APA-45 by Mike Glicksohn and Susan Wood; as of issue four, which was constituted as "Volume 2", it was edited by Mike Glicksohn alone, and was distributed by Fantasy Amateur Press Association.
Contributors of art work included Alicia Austin, Barry Base, Randy Bathurst, John Berry, Grant Canfield, Derek Carter, Connie Reich Faddis (Interphase), Mike Gilbert, C. Lee Healy, John Ingham, Tim Kirk, Marty Larson, Paul Neary, Bill Rotsler, Jim Shull, Dan Steffan, Angus Taylor, Bjo Trimble (Melange), and others.
Contributions of comic strips came from Alicia Austin, and Steve Stiles.
Mike Glicksohn and Susan Wood also published Energumen.