Lesley Cantwell (22 February 1987 – 7 June 2013) was a New Zealand racewalker. Cantwell won the gold medal in the women's 5000 m road walk at the 2013 Oceania Athletics Championships in Tahiti on 4 June 2013. While waiting for the medal ceremony, she felt unwell and collapsed. She was taken to a local hospital where she died three days later.