Jemima Montag (born 15 February 1998) is an Australian racewalker. She came sixth in the final of the Women's 20 km walk in the Tokyo 2020 Olympics in a time of 1:30.39. Montag studies science at the University of Melbourne and works at a company that delivers food to underprivileged families, Montag is coached by former racewalker Brent Vallance.