Coordinates: 85°36′S 67°30′W / 85.6°S 67.5°W / -85.6; -67.5
Arcas is a crater on Jupiter's moon Callisto measuring 60 km across. This an example of a central pit impact crater. A smaller crater near Arcas is called Ginandy.
The crater is named after Arcas, the son of Callisto in Greek mythology.