Sophie O'Sullivan

Sophie O'Sullivan is an Australian-born Irish athlete. She won a silver medal in the 800 metres at the 2018 European Athletics U18 Championships in Győr, Hungary. O'Sullivan won 1500 metres gold at the 2023 European Athletics U23 Championships in Espoo, Finland. She represented the Washington Huskies at the University of Washington in NCAA track and field competitions. In 2025, she won the NCCA outdoor 1500 m championships in Eugene, Oregon in her final race as a Washington Husky.