de Vaux (Vans, Vance, Vallibus) is the surname of an old Norman noble family.
Robert and Aitard de Vaux followed in the retinue of Roger Bigod during William of Normandy's invasion of England.
Ranulf de Vaux obtained the lordships of Tryermayne, Sowerby, Carlatton and Hubbertby, in Cumbria.
Robert de Vaux received the Barony of Dalston in Cumbria, however returned to Normandy.
The Willes family of Warwickshire, also descend from Hubert de Vaux of Gilisland.