Quetelet is a lunar impact crater, approximately 55 kilometers in diameter, that lies in the Moon's northern hemisphere, on the far side from the Earth.

As is the case with many of the craters on the Moon, this feature has become worn and eroded by subsequent impacts.

A small crater with a flat floor intrudes into the southwestern rim of Quetelet.

The inner wall of Quetelet is narrower in the west than elsewhere, so that the level, relatively featureless interior floor is offset in that direction.

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