Hadlow is a village in the borough of Tonbridge and Malling in Kent, England. It is situated in the Medway valley, north-east of Tonbridge and south-west of Maidstone. The Saxon name for the settlement was Haeselholte (in the Textus Roffensis). The Domesday Book records it as Haslow and in the Middle Ages it became Hadloe and then Hadlow.