Jessica Learmonth (born 18 April 1988) is a British triathlete. Learmonth is a European, Commonwealth and World Triathlon Series medal winner based in Leeds, England where she trains at the Leeds Triathlon Centre. She won the European Triathlon Championship in 2017 and took silver in 2018. She competed in the women's event and the mixed relay at the 2018 Commonwealth Games, winning silver medals in both disciplines. Learmonth won silver in the 2019 World Triathlon Series. In 2021, Learmonth won the gold medal in the triathlon mixed relay at the 2020 Summer Olympics in Tokyo.