Winkler is a small lunar impact crater on the far side of the Moon.

This feature forms a circular, cup-shaped depression in the surface.

A small, relatively fresh crater lies across the eastern rim.

The crater was formally named by the IAU in 1970 after German rocketry scientist Johannes Winkler.

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