Major-General Charles Stanhope, 4th Earl of Harrington (8 April 1780 – 3 March 1851), styled Viscount Petersham until 1829, was an English peer and man of fashion.

He was educated at Eton from 1793 until 1795 on 7 December of that year, on 10 March 1812, he was appointed a Gentleman of the Bedchamber to King George III.

He attracted the attention and friendship of the then Prince regent who emulated his clothes, his tea drinking and his addiction to snuff.

Lord Petersham's sitting room contained canisters of tea in great variety and an equally wide range of snuff.

The 4th Earl of Harrington had William Barron landscape the park at Elvaston Castle, his father's Gothic confection by James Wyatt.