Henry Richard Charles Wellesley, 1st Earl Cowley,, known as The Lord Cowley between 1847 and 1857, was a British diplomat. He served as British Ambassador to France between 1852 and 1867.

Henry Wellesley, 1st Baron Cowley GCB was an Anglo-Irish diplomat and politician. He was the younger brother of the soldier and politician the first Duke of Wellington. He is known particularly for his service as British Ambassador to Spain during the Peninsular War where he acted in cooperation with his brother to gain the support of Cortes of Cádiz. His later postings included being Ambassador in Vienna where he dealt with Metternich and British Ambassador to France during the reign of Louis Philippe I.