Whaddon may refer to several places in England:
- Whaddon, Buckinghamshire
- Whaddon, Cambridgeshire
- Whaddon, Cheltenham, Gloucestershire
- Whaddon, Stroud, in Brookthorpe-with-Whaddon, Gloucestershire
- Whaddon, Wiltshire, hamlet near Trowbridge
- Whaddon, Salisbury, village near Salisbury, Wiltshire
- Whaddon Hall, country house in Whaddon, Buckinghamshire
- Whaddon House, block of flats in Knightsbridge, London