October 3-5, 2008 Archon
Collinsville, IL
science fiction and fantasy
Guest of Honor: Laurell K Hamilton

October 3-5, 2008
Romulus, MI
Conclave
Urban Fantasy, Anime and Gaming
Guest of Honor: Michelle West

October 3-5, 2008
Richmond, BC, Canada
VCON
Science Fiction, Fantasy and Gaming
Author guests: Patrick Rothfuss, Kelley Armstrong

October 3-5, 2008
Fencon
Dallas, TX
Literary Science Fiction and Fantasy
Guest of Honor: Jay Lake

October 3-5, 2008
PhauxCon
Philadelphia, PA
Science fiction and fantasy in television, film, comics and novels
No guests listed

October 3-5, 2008
San Jose, CA
SiliCon
Science fiction, fantasy and horror convention to benefit diabetes research
Writer Guest of Honor: Larry Niven

October 3-6, 2008 Conflux
Canberra, Australia
Science fiction and fantasy
Guests: Sharyn November, Jack Dann, Cat Sparks and others

October 10-13, 2008
Gaylaxicon
Washington DC
Science fiction and fantasy for gay men, lesbians, bisexuals, transgendered people and their friends
Author guest of honor: Geoff Ryman

October 10-12, 2008
Tampa FL
Necronomicon
Science Fiction, Fantasy and Horror fans
Guests of honor: Frederik Pohl, Julie E. Czerneda, Rick Wilber

October 17-19, 2008
St. Paul, MN
Arcana
Dark Fantasy
Guest of honor: F. Paul Wilson

October 17-19, 2008
Huntsville, AL
Con*Stellation
Science Fiction Convention sponsored by the North Alabama Science Fiction Association
Guests of honor: Diane Duane
Master of Ceremonies: Mike Resnick

October 17-19, 2008
Silver Spring, MD
Capclave
Science Fiction convention sponsored by the Washington Science Fiction Association
Guests of honor: James Morrow

October 17-19, 2008
Montreal, Quebec, Canada
Con*Cept
Science fiction and fantasy
Author guest of honor: David Brin

October 18-19, 2008
Maynooth, County Kildare, Ireland
Octocon
National Irish Science Fiction Convention
Guest of honor: Ken MacLeod

October 18-19, 2008
Edmonton, AB, Canada
Pure Sepculation
Speculative fiction
Author guest of honor: Robert J Sawyer

October 24-26, 2008
Denver, CO
MilehiCon
Literary Science Fiction
Author guests of honor: Jim Butcher, Tim Powers, Patricia Briggs

October 24-26, 2008
Chattanooga TN
HallowCon
Fantasy & Horror; this year's theme: Wizards, Witches and Warlocks; Oh My
Author Guests: Christina Barber, Lawrence Barker