Sisauranon, Sisauronon (Greek: Σισαυράνων), Sisaurana, or Sarbane was a Sasanian fortress city in the province of Arbayistan, located to the east of Nisibis at the edge of the north Syrian plain.

On linguistic grounds, it is identified with the way-station Sarbane in the 5th-century Tabula Peutingeriana, and with the modern site of Sirvan on the Turkish–Syrian border, whose name probably derives from the ancient settlement.

[3][4] The site is also variously mentioned as Sarbanon (τὸ Σαρβανῶν) in Theophanes the Confessor, Sisarbanon (τὸ Σισαρβάνων) in Theophylact Simocatta, and Sisara in Ammianus Marcellinus, as well as the variant forms of Sisaurion (Σισαύριον), Sisabranon (Σισαβράνων), Isauranon (Ἰσαυρανῶν) in various manuscripts of Procopius.

As late as 2006, some of the fort's walls were still extant on the site, but the remains of Roman roads reported in 1927 appear to have vanished.

[2] The Roman fortress of Rhabdion (modern-day Hatem Tai Kalesi, Turkey) is located on the steep slope just 6.5 kilometers to the north-west of Sisauranon.