Sir Edward Denny, 3rd Baronet (died 1 August 1831) was an Anglo-Irish politician.
Denny was the son of Sir Barry Denny, 1st Baronet and Jane Denny, and the younger brother of Sir Barry Denny, 2nd Baronet. He held the office of High Sheriff of Kerry in 1794 and was Deputy Lieutenant of County Kerry. On 20 October 1794 he succeeded to his brother's baronetcy. He was elected to the House of Commons of the United Kingdom as a Tory Member of Parliament for Tralee in September 1828, but resigned after less than a year in June 1829 due to poor health. He died two years later.
He married Elizabeth Day, daughter of Robert Day, on 26 May 1795 and together they had six children. He was succeeded by his eldest son, Edward.