Stewart McSweyn (born 1 June 1995) is an Australian long-distance runner. He competed in the Tokyo 2020 Olympics and managed to qualify for the Men's 1500m final. He came third in his heat with a time of 3:36.39 and qualified for the semifinals. Here he came fifth with a time of 3:32.54. This time was good enough for him to qualify for the final. His time of 3:31.91 earned him seventh place.