Henry Loftus, 1st Earl of Ely KP, PC (Ire) (18 November 1709 – 8 May 1783), styled The Honourable from 1751 to 1769 and known as Henry Loftus, 4th Viscount Loftus from 1769 to 1771, was an Anglo-Irish peer and politician. He was the younger son of Nicholas Loftus, 1st Viscount Loftus and Anne Ponsonby, daughter of William Ponsonby, 1st Viscount Duncannon. His elder brother was Nicholas Hume-Loftus, 1st Earl of Ely of the first creation.