Clerke is a tiny lunar impact crater named after Irish astronomer Agnes Mary Clerke,[1] who played a role in bringing astronomy and astrophysics to the public in Victorian England.

[2] It is located near the eastern edge of Mare Serenitatis in the midst of a rille system named the Rimae Littrow after the crater Littrow to the east.

It is roughly circular and cup-shaped, with a relatively high albedo.

In a valley to the southeast is the landing site of the Apollo 17 mission.

Clerke was previously designated Littrow B.