Henry Vane, 1st Earl of Darlington, PC, known as Lord Barnard between 1753 and 1754, was a British politician who sat in the House of Commons from 1726 to 1753 when he succeeded to a peerage as Baron Barnard.

Baron Barnard, of Barnard Castle in the Bishopric of Durham, is a title in the Peerage of England. It was created in 1698 for Christopher Vane, who had previously served as a member of parliament for County Durham and Boroughbridge. Vane was the son of Sir Henry Vane the Younger and grandson of Sir Henry Vane the Elder. His grandson, the third Baron, notably served as Paymaster of the Forces and as Lord Lieutenant of County Durham. In 1754 he was created Viscount Barnard and Earl of Darlington, both in the County Palatine of Durham. Lord Darlington was the husband of Lady Grace FitzRoy, daughter of Charles FitzRoy, 2nd Duke of Cleveland, the illegitimate son of King Charles II by his mistress Barbara Villiers, 1st Duchess of Cleveland.