Sir Frederick Evelyn, 3rd Baronet (1734 – 1 April 1812) was a British aristocrat. He was born in 1734, the only son of Sir John Evelyn, 2nd Baronet, and served in Elliot's Light Horse at the battle of Minden in 1759, during the Seven Years' War. He succeeded his father to the baronetcy created for his grandfather, Sir John Evelyn, 1st Baronet of Wotton, on 11 June 1767, inheriting Wotton House, Surrey.