Melvin Whinfield "Peerless Mel" Sheppard (September 5, 1883 – January 4, 1942) was an American athlete, member of the Irish American Athletic Club and winner of four gold medals at the 1908 Summer Olympics and 1912 Summer Olympics. Along with Henry Taylor of the United Kingdom, he was the most successful athlete at the 1908 Olympics.
Born in the Almonesson section of Deptford Township, New Jersey, he moved from there with his family to Clayton at the age of nine and worked in a glass factory before moving to Haddonfield and then the Grays Ferry neighborhood of Philadelphia during his mid-teens. Sheppard, or "Peerless Mel" as he was nicknamed, was rejected by the New York Police because he had a slightly enlarged heart. Cardiopulmonary problems notwithstanding, Sheppard won three consecutive AAU titles in the 880 yards (805 m) from 1906 to 1908 and became a main favorite for the middle distance events at the 1908 Summer Olympics in London. By late 1907 Sheppard held the world indoor records for 600 yards, 880 yards, 1000 yards and the mile.