Xenium was a science fiction fanzine by Mike Glicksohn.
Published in Toronto, Ontario, Canada, 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. It was subtitled "The Fanzine That Gives You Something Extra", and included small mementoes of Glicksohn's personal life, such as subway transfers, credit card slips, and so on.
Contributors of writing included John Alderson, Bill Bowers (Outworlds), Grant Canfield, Norm Clarke (Honque, Queebshots), Harlan Ellison ( Science Fantasy Bulletin), Joe Haldeman, Christina Lake (This Never Happens), (Dave Langford (Ansible), Stephen Leigh, George R.R. Martin, Andy Offutt, Spider Robinson, Mae Strelkov, Elessar Tetramariner, Susan Wood (Aspidistra, Amor), and Ben Zuhl.
Contributors of art work included Alicia Austin (Kevas and Trillium), George Barr, Barry Base, Randy Bathurst, Harry Bell (Grimwab), John Berry, Sheryl Birkhead,Tim Blackmore, Grant Canfield, Derek Carter, Vincent Di Fate, Connie Reich Faddis (Interphase), Mike Gilbert, C. Lee Healy, John Ingham, Tim Kirk, Vic Kostriken, Marty Larson, Barry Kent MacKay, Jim McLeod, Randy Mohr, Paul Neary, Bill Rotsler, Stu Shiffman, Jim Shull, Dan Steffan (Boonfark), Angus Taylor, Arthur Thomson, Bjo Trimble (Melange), Joan Hanke Woods, and others.
Covers were by C. Lee Healy (#1, #3, #5), Tim Kirk (#2), Jim Shull (#4), Terry Austin and Randy Bathurst (#6), Terry Austin (#7), Derek Carter (#8, #10, #11), Joan Hanke Woods (#12, #15), Linda Michaels (#13), and others.
Contributions of comic strips came from Alicia Austin, and Steve Stiles.
Letters came from Robert Bloch, Eli Cohen (Kratophany), Don D'Ammassa (Mythologies), David Emerson (Rune), Jackie Franke (Resolution), Jerry Kaufman (The Spanish Inquisition), Robert Lichtman (Trap Door), Eric Lindsay (Gegenschein), Sam Long, Mike O'Brien, Nigel Richardson, Peter Roberts (Checkpoint), Paul Skelton (Small Friendly Dog), Bob Tucker (Le Zombie), Harry Warner, Jr. (Horizons), Dave Yoder, and others.
Mike Glicksohn and Susan Wood also published Energumen.