Langley is a lunar impact crater that is located close to the northwestern limb of the Moon, and from the Earth is viewed edge-on.

Galvani intrudes into the southeastern part of the floor, having overlaid that section of the rim.

To the northeast is a pair of craters designated Langley J and Langley K. These lie proximal to each other, along the inner side of the rim shared with Volta.

The interior floor of Langley is relatively featureless, with only a few craterlets.

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