Henry de Grey, 5th Earl of Kent (c. 1745–1816), was a British nobleman known for his role in the House of Lords. He inherited the title from his father, Henry de Grey, 4th Earl of Kent, and was involved in various political and social activities during his lifetime. As a member of the Whig Party, he participated in the political landscape of 18th-century Britain. The Earl was also known for his connections to other prominent figures of the time, contributing to the social fabric of the British aristocracy.