Waddesdon Manor is a country house in the village of Waddesdon, in Buckinghamshire, England. It is located in the Aylesbury Vale, 6.6 miles west of Aylesbury. The house was built in the Neo-Renaissance style of a French château between 1874 and 1889 for Baron Ferdinand de Rothschild (1839–1898) as a weekend residence for grand entertaining.
The last member of the Rothschild family to own Waddesdon was James de Rothschild (1878–1957). He bequeathed the house and its contents to the National Trust. It is now administered by a Rothschild charitable trust that is overseen by Jacob Rothschild, 4th Baron Rothschild. It is one of the National Trust's most visited properties, with around 335,000 visitors annually.