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 High Street, rebuilt three times, a rail bridge approaching Windsor across the river, and two road bridges above and below the village.

The name "Datchet" is thought to be Celtic in origin, and the last part may be related to cet ("wood"). In Domesday Book it is called "Daceta".

Datchet railway station is on the Windsor & Eton Riverside to London Waterloo line with a journey time of around 55 minutes.

The Manor is a hotel and conference centre, originally part of the Manor House range of houses, owned but never occupied by any lord of the manor. The history of the manor begins in 1335 when King Edward III gave the manor of Datchet to William de Montacute, who then passed it on to Sir John Molyns, who held it until 1631, when it passed to the Winwood family and eventually to the Buccleuch and Montagu families. Lord Montagu of Beaulieu is still the titular Lord of Datchet Manor but owns no property here.

There is one pub in Datchet, The Royal Stag. The Morning Star is now a Costa Coffee shop and the Plough is a branch of Tesco.

Datchet has a number of sports clubs including Datchet Cricket, Football, a Golf Club, founded in 1892, and sailing at the Queen Mother Reservoir.

• William Herschel, astronomer, lived at The Lawn on Horton Road from 1782 to 1785.
• Hon Evelyn Ellis lived at Rosenau on Southlea Road in the 1880s. He owned the first ever motor car in Britain.
• Barry Davies, sports commentator, lives in Datchet.
• Stephen Tompkinson, actor, has lived in Datchet since 2003.