Kuiper (/ˈkaɪpər/ KY-pər) is a small lunar impact crater in a relatively featureless part of the Mare Cognitum.

It was named after Dutch-American astronomer Gerard Kuiper in 1976.

[1] Kuiper was the Project Scientist for the Ranger program.

This crater was previously identified as Bonpland E. The lava-flooded crater Bonpland lies to the east at the edge of the Mare Cognitum.

To the east-southeast of Kuiper crater is the crash landing site of the Ranger 7 probe, the first American spacecraft to photograph the Moon.