Isabelle Thorpe (born 4 March 2001) is a British synchronised swimmer. She competed in the women's duet event at the 2020 Summer Olympics held in Tokyo, Japan. She also represented Great Britain at the 2017 World Aquatics Championships in Budapest, Hungary and at the 2019 World Aquatics Championships in Gwangju, South Korea. She also competed at the 2022 World Aquatics Championships in Budapest, Hungary. She trains at the City of Bristol Swimming Club.