Geshu Han
An Sishun () (died April 6, 756) was a general of the Chinese dynasty Tang Dynasty during the reign of Emperor Xuanzong, probably of Tujue (Göktürk) extraction. He was related to another general, An Lushan. After An Lushan rebelled against Emperor Xuanzong's rule in 755, another general who was inimical to An Sishun, Geshu Han, manufactured evidence that An Sishun was complicit in An Lushan's rebellion, and An Sishun was killed.