George William Campbell, 6th Duke of Argyll, GCH, PC (22 September 1768 – 22 October 1839), styled Earl of Campbell from 1768 to 1770 and Marquess of Lorne from 1770 to 1806, was a Scottish Whig politician and nobleman.

Argyll was the eldest son of John Campbell, 5th Duke of Argyll and his wife, Elizabeth Campbell, 1st Baroness Hamilton, daughter of Colonel John Gunning.

Argyll sat as Member of Parliament for St Germans from 1790 to 1796.

The Whigs fell from power in November 1834 but returned to office already in April 1835, when Argyll once again became Lord Steward under Melbourne.

She was the former wife of Argyll's friend Henry Paget, 1st Marquess of Anglesey.