Kolhörster is a lunar impact crater that is located on the Moon's far side.

To the south of Kolhörster is an area marked with crater chains formed from secondary impacts during the creation of the Mare Imbrium impact basin.

The rim of this crater is marked in several locations by smaller impacts that lie along or across the side.

The northeastern rim is somewhat indented into the interior of the crater.

Within the interior the floor is relatively featureless and level, with only a few tiny craterlets to mark the surface.