John Stuart-Wortley, 2nd Baron Wharncliffe FRS (20 April 1801 – 22 October 1855), was a British Tory politician.

He served briefly as Under-Secretary of State for War and the Colonies between December 1834 and January 1835.

A member of the Stuart family headed by the Marquess of Bute, Wharncliffe was the son of James Stuart-Wortley, 1st Baron Wharncliffe, and his wife Lady Caroline Elizabeth Mary Crichton, daughter of John Crichton, 1st Earl Erne.

Wharncliffe sat as Member of Parliament for Bossiney from 1823 to 1830,[1] for Perth Burghs from 1830 to 1831[2] and for the West Riding of Yorkshire from 1841 to 1845.

[3] He served under the Duke of Wellington as Secretary to the Board of Control in 1830 and under Sir Robert Peel as Under-Secretary of State for War and the Colonies from 1834 to 1835.