Sirian
Sirian or Sirians may refer to:
 Sirians, human adversaries in Lucky Starr and the Pirates of the Asteroids and other Lucky Starr novels by Isaac Asimov writing as Paul French
 Sirians, citizens of the Sirian Empire in The Sirian Experiments by Doris Lessing
 Sirians, an alien race in The Age of the Pussyfoot by Frederik Pohl
 Sirians, an alien race in Wasp by Eric Frank Russell
 Sirians, an alien race in Serious Sam
 Sirians, alien invaders in XF5700 Mantis

People with the surname
 George Sirian (1818–1891), American naval officer

Places
 Sirian, Iran, a village in Isfahan Province, Iran