Datchet is a village and civil parish in the Royal Borough of Windsor and Maidenhead in Berkshire, England, located on the north bank of the River Thames. Historically part of Buckinghamshire, and the Stoke Hundred, the village was eventually transferred to Berkshire, under the Local Government Act of 1972. The village developed because of its close proximity to Windsor and the ferry service which connected it to the main London Road across the River Thames. The ferry was later replaced by a road bridge at the foot of the High Street, which was rebuilt three times. There is also a rail bridge approaching Windsor across the river, and two road bridges above and below the village.

The Royal Borough of Windsor and Maidenhead is a royal borough and unitary authority in Berkshire, South East England. While it is named after both the towns of Maidenhead and Windsor, the borough also covers the nearby towns of Ascot and Eton. It is home to Windsor Castle, Eton College, Legoland Windsor and Ascot Racecourse. It is one of four boroughs entitled to be prefixed Royal and is one of six unitary authorities in the county, which has historic and ceremonial status.