Sir Harry Julian Stonor GCVO (17 November 1859 – 5 May 1939) was a British courtier who served in several successive Royal Households of the United Kingdom. Stonor was the son of Hon. Francis Stonor, a son of Thomas Stonor, 3rd Baron Camoys, and Eliza Peel, a daughter of Prime Minister Sir Robert Peel. In 1881 he was granted the style and precedence of the younger son of a Baron by Royal Warrant when his brother, Francis, succeeded to his grandfather's barony. He was a devout Roman Catholic. He died unmarried in 1939.