The Drôme is a 57.9 km long river in Normandy.

[1] Its source is on the border of the Manche and Calvados departments, at le Grand Cauville locality, near Saint-Martin-des-Besaces[2] and joins the Aure, left bank at Maisons, downstream of Bayeux in the Bessin region.

The watershed of the Drôme neighbours those of the Vire, Aure (east), Tortonne (NW) and Seulles (SE).

It is a narrow, northward basin.

The longest of its affluents is the ruisseau du Vey (7.3 km),[1] which it joins at Cormolain.