Longchamp-sur-Aujon (French pronunciation: [lɔ̃ʃɑ̃ syʁ oʒɔ̃], literally Longchamp on Aujon) is a commune in the Aube department in north-central France.

The Aujon forms part of the commune's eastern border, crosses the village, flows west through the middle of the commune, then flows into the Aube, which forms the commune's western border.

This Aube geographical article is a stub.

You can help Wikipedia by expanding it.