William Feilding
William Feilding may refer to:
- Sir William Feilding (died 1471), Lancastrian and knight of the shire for Leicestershire
- William Feilding, 1st Earl of Denbigh, English naval officer and courtier
- William Feilding, 3rd Earl of Denbigh, grandson of 3rd Earl
- William Feilding (1669–1723), Member of Parliament for Castle Rising 1705–24
- William Feilding, Viscount Feilding, British army colonel and politician
- William Feilding, 7th Earl of Denbigh, son of William Robert Feilding, Viscount Feilding
- William Feilding (British Army officer, born 1836), British soldier, son of 7th Earl Denbigh
- William Feilding, 10th Earl of Denbigh
- William Feilding, 11th Earl of Denbigh, Earl of Denbigh