James Brydges, 1st Duke of Chandos, was an English landowner and politician who sat in the English and British House of Commons from 1698 until 1714, when he succeeded to the peerage as Baron Chandos, and vacated his seat in the House of Commons to sit in the House of Lords. He was subsequently created Earl of Carnarvon, and then Duke of Chandos in 1719.

The Dukedom of Chandos was a title that has been created twice in the Peerage of England. First created as a barony by Edward III in 1337, its second creation in 1554 was due to the Brydges family's service to Mary I during Wyatt's rebellion, when she also gave them Sudeley Castle. The barony was elevated to a dukedom in 1719, and it finally fell into abeyance in 1789, after 452 years.