Ellison is a lunar impact crater that lies on the far side of the Moon from the Earth.

It is located just beyond the northwest limb of the Moon, to the southwest of the large walled plain Poczobutt.

A smaller crater is located just to the west-southwest of this centrally-located formation, but the flat interior floor is otherwise devoid of features of interest.

Ellison lies at the approximate margin of the Coulomb-Sarton Basin, a 530 km wide impact crater of Pre-Nectarian age.

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Ellison.