Chantal Liew Li-Shan (born 9 August 1998) is a Singaporean national open water swimmer.

Liew graduated with a degree in Communications and New Media from the National University of Singapore.

[1][2] Liew dreamed of participating in the SEA Games since she was a child.

[3] In 2017, she won a SEA Games silver in a personal best of 2:21:30 in the women's 10 km open water swim held in Kuala Lumpur and became the first Singapore woman to win a medal in the event, after Thai swimmer Benjaporn Sriphanomthorn was stripped for her silver medal following a failed doping test.

[7] Following the end of 2020 Olympics, Liew announced her retirement from professional swimming career.