The sculpture collection at Waddesdon is divided between the house and the garden, with an important contemporary collection at Windmill Hill. Works in the house are by or after important 18th-century French sculptors such as Caffieri, Pajou, Pigalle, Lemoyne, Falconet and Marin. There is a significant group of terracottas by Clodion. A bust of Queen Victoria by Edgar Boehm, a gift from the Queen to Baron Ferdinand, is displayed in its original location in the Baron’s Room.
Mythological and allegorical sculptures populate the garden. Among the most important is the Apollo made by Jean Raon for Versailles. Many figures are 18th-century Italian - the two fountains come from the palace of the Dukes of Parma in Colorno. Vases by Flemish artists, notably Artus I Quellinus, and 19th-century copies of well-known sculptures from antiquity also feature in the scheme laid out by Baron Ferdinand. Contemporary works by Stephen Cox, Sarah Lucas, Anish Kapoor, Richard Long and Michael Craig Martin have been added recently.