Turgis /ˈtɜːrdʒɪs/ is the largest known crater on Saturn's moon Iapetus.

[2][3] It is 580 km in diameter,[1] 40% of the moon's diameter and one of the larger craters in the Solar System.

It is named after a Saracen baron, Turgis of Turtelose (Tortosa).

[1] The rim has a scarp about 15 km high that generated a landslide.

[4] It is overlain by Malun, the 13th-largest crater on Iapetus.