The hamlet name 'Eaton' is a common one in England, meaning 'farm by a river'. It was listed in the Domesday Book of 1086 as Eitone. The suffix 'Bray' refers to the family that once owned the manor in this hamlet.
Eaton Bray is often confused with the village of the same name in Leicestershire. See Eaton Bray, Leicestershire.