Hexton is a small village and civil parish in Hertfordshire, England, about 6 miles west of Hitchin. This parish is a salient of Hertfordshire jutting northwards into Bedfordshire. The southern half of the parish is part of the chalky downs of the Chiltern Hills, which are covered with short turf and plantations of fir trees. The hills end abruptly and close to their foot lies the village of Hexton.