Freya Ann Alexandra Anderson MBE (born 4 March 2001) is a British swimmer, known primarily for her achievements as a freestyle sprinter, especially as a relay swimmer for Great Britain. Anderson achieved nine relay gold medals at three editions of the European Championships, including 5 golds in a single meet at the 2020 European Championships in Budapest, as well as two bronze medals at the Commonwealth Games and a bronze at the 2019 World Aquatics Championships. In July 2021, she won gold as part of the British team at the 2020 Tokyo Olympics in mixed 4 × 100 metre medley relay, swimming the freestyle anchor leg in the heat.
Individually, Anderson has won silver and bronze medals in the 2022 European Championships (50m), and is a double European champion in short course (25m), winning both 100 m and 200 m freestyle in 2019 in Glasgow. Anderson is a three-time European Junior and one-time World junior champion individually.