Marnie Ponton

{{short description|Australian long-distance runner}}

{{Use dmy dates|date=April 2022}}

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{{Medal|Competition| Australian Athletics Championships }}

{{Medal|Gold| 2004 Sydney | 3000 m steeplechase }}

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Marnie Ponton (born 16 March 1984){{Cite web|title=Senior women's race|url=https://media.aws.iaaf.org/competitiondocuments/pdf/6265/AT-XSE-W-f----.RS6.pdf?v=21598225|url-status=live|archive-url=https://web.archive.org/web/20200627195835/https://media.aws.iaaf.org/competitiondocuments/pdf/6265/AT-XSE-W-f----.RS6.pdf?v=21598225|archive-date=27 June 2020|access-date=27 June 2020|website=2019 IAAF World Cross Country Championships}} is an Australian long-distance runner. She competed in the senior women's race at the 2019 IAAF World Cross Country Championships. She finished in 44th place.

In 2004, she won the gold medal in the women's 3000 metres steeplechase event at the 2003–04 Australian Athletics Championships held in Sydney, Australia.

In 2018, she competed at the inaugural Commonwealth Half Marathon Championships.{{Cite news|last=Cunningham|first=Ilsa|date=29 September 2018|title=Marnie Ponton to represent Australia at Commonwealth Half Marathon Championships|work=Blue Mountains Gazette|url=https://www.bluemountainsgazette.com.au/story/5672204/marnie-ponton-to-represent-australia-at-commonwealth-half-marathon-championships/|access-date=29 June 2020}}

In 2022, she won the Canberra Marathon.