Granborough (previously Grandborough) is a village and civil parish in Buckinghamshire, England.

Anciently the manor of Granborough was owned by the abbey at St Albans, though in the Dissolution of the Monasteries in 1547 ownership passed automatically to the Crown.

The ancient parish church, dedicated to St John the Baptist, was demolished during the English Civil War, though was rebuilt shortly after the Restoration of the Monarchy in 1685.

After the parish church the most interesting building is the neat half-timbered Arts and Crafts village hall.

Granborough still has very many thatched cottages and houses, many of them in Green End, a hamlet attached to the village.