Appleton is a heavily eroded lunar impact crater that lies in the northern hemisphere on the far side of the Moon.

The crater wall and interior have been heavily eroded by many subsequent impacts, leaving the features rounded and irregular.

Prior to formal naming by the IAU in 1970,[1] Appleton was called Crater 129.

[2] Appleton lies between satellite craters that are located on opposite sides of the rim.

Appleton R is located just to the west-southwest, and contains another crater just inside its north rim.