Walter I de Claville (floruit 1086) (alias de Clarville and Latinised to de Clavilla) was an Anglo-Norman magnate and one of the 52 Devon Domesday Book tenants-in-chief of King William the Conqueror. He also held lands in Dorset. His Devonshire estates later formed part of the feudal barony of Gloucester.
He is believed to have originated at any one of the manors called Claville or Clasville in the Duchy of Normandy, namely:
His brother was Gotshelm, also a Devonshire tenant-in-chief, whose estates also later formed part of the feudal barony of Gloucester.
It is not known whether he married and left progeny, however Walter II de Claville (supposed by Cleveland to be his grandson) in about 1170 gave many of Walter I's former Domesday Book estates to a priory which he established on his estate of Leigh within his manor of Burlescombe, later known as Canons' Leigh Priory. Furthermore several of his estates were held in the 13th century by a certain "William de Claville", as recorded in the Book of Fees (see list below).
Claville is a commune in the Eure department in northern France.