This is a list of named geological features on Mimas, a moon that orbits the planet Saturn. Mimantean features are named after people and places in Arthurian legend or the legends of the Titans. The sole exception to this is Herschel Crater, named after William Herschel, the astronomer who discovered Mimas in 1789. That name was chosen before the International Astronomical Union set a guideline for naming geological features on Mimas.