Princes Risborough () is a market town and civil parish in Buckinghamshire, England, about 9 miles (14 km) south of Aylesbury and 8 miles (13 km) north west of High Wycombe. It lies at the foot of the Chiltern Hills, at the north end of a gap or pass through the Chilterns, the south end of which is at West Wycombe. The A4010 road follows this route from West Wycombe through the town and then on to Aylesbury.
Historically it was both a manor and an ecclesiastical parish, of the same extent as the manor, which comprised the present ecclesiastical parish of Princes Risborough (excluding Ilmer) and also the present ecclesiastical parish of Lacey Green, which became a separate parish in the 19th century. It was long and narrow (a "strip parish"), taking in land below the Chiltern scarp, the slope of the scarp itself and also land above the scarp extending into the Chiltern hills. The manor and the parish extended from Longwick in the north through Alscot, the town of Princes Risborough, Loosley Row and Lacey Green to Speen and Walters Ash in the south.
Since 1934 the civil parish of Princes Risborough (formerly the same as the ecclesiastical parish) has included the town of Princes Risborough, the village of Monks Risborough (but not the outlying parts) and part of Horsenden but has excluded Longwick. It is within the Wycombe district of Buckinghamshire and operates as a town council within Wycombe district.
The town is overlooked by the Whiteleaf Cross, a chalk cross carved into the hillside that's just northeast of the town. Though the cross itself lies just above the village with the same name, the landmark is located within the area of Monks Risborough.