Princes Risborough (/ˈrɪzbərə/), often shortened to Risborough or PR, is a market town and civil parish in Buckinghamshire, England; it is located about 9 miles (14 km) south of Aylesbury and 8 miles (13 km) northwest 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.

It is around twenty minutes away from the neighbouring town of Haddenham

The name 'Risborough' comes from the Old English hrisen beorgas meaning 'brushwood-covered hills'. Hrisen, an adjective meaning brushwood-covered derived from hris meaning brushwood or scrub, and beorgas which meant hills. The spelling varies in the documents in which the name is found.

In the 13th century, it was known as Magna Risberge (Great Risborough) which distinguished it from Parva Risberge (Little Risborough), which is now Monks Risborough. Later it was Earls Risborough because the manor was held by the Earls of Cornwall between 1242 and 1336. At some point, following the death of Edward the Black Prince, it became Prince Risberge and later Princes Risborough, as the manor belonged to various Princes during the Wars of the Roses during the 15th century.

Great Risborough, as it was then known, had been a Saxon village held by Edward the Confessor. As a royal manor it could be used by the King to make financial provision for members of the royal family or others whom the King at any point might wish to reward. The current land where the royal manor once stood (now a car park known as The Mount) bares traces of banks and entrenchments, enclosed by a moat and is originally believed to have been a Saxon encampment. The land was then held shortly by Harold Godwinson before he was defeated at the Battle of Hastings.