ArmadilloCon is a science fiction convention held annually in Austin, Texas, USA, since 1979. As the second longest running science fiction convention in Texas, it is sponsored by the Fandom Association of Central Texas and is known for its emphasis on literary science fiction. ArmadilloCon was traditionally held in mid-October during the weekend of the Texas-OU football game, but moved to a late-summer/early-fall weekend in 1998.