Leuschner is a lunar impact crater that is located on the Moon's far side, to the northwest of the Montes Cordillera.

It lies to the north of the crater Grachev, in the outer skirt of ejecta surrounding the Mare Orientale impact basin.

This is a circular crater with a rim that has only been lightly eroded by subsequent impacts.

The Catena Leuschner is a crater chain formation that begins at the northern outer rim of Leuschner and runs to the northwest towards the crater Kolhörster.

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