Brill is a village and civil parish in west Buckinghamshire, England, close to the border with Oxfordshire. It is about 4 miles (6 km) north-west of Long Crendon and 7 miles (11 km) south-east of Bicester. At the 2011 Census, the population of the civil parish was 1,141. Brill has a royal charter to hold a weekly market, but has not done so for many years.