Ethan McGuinness (born 2001) is an Australian athlete who competes in trampoline gymnastics.
McGuinness began competing in trampoline gymnastics to learn how to do a backflip as celebration after scoring a try in rugby league. He trained at the Kachan School of Tumbling and Performance.
McGuinness is a two time World Champion, winning gold at the men's tumbling at the 2022 World Championships in Sofia, Bulgaria and the 2025 World Championships in Pamplona, Spain.