Thomas Peter Rademacher (November 20, 1928 – June 4, 2020) was an American heavyweight boxer. As an amateur, he was a gold medalist at the 1956 Olympics. Rademacher became the only person to challenge for the world heavyweight championship in his first professional bout when he faced Floyd Patterson in Seattle on August 22, 1957. He compiled a 15-7-1 record over 23 professional bouts.