Thomas Heilman (born February 7, 2007) is an American competitive swimmer. He is a world junior record holder in the 4×100-meter freestyle relay. He is also a 2022 Junior Pan Pacific Championships gold medalist in the 100-meter butterfly, 4×100-meter freestyle relay, and 4×100-meter medley relay, and a silver medalist in the 100-meter freestyle, 200-meter butterfly, and 4×200-meter freestyle relay.