Years active: 2020 - present (started around 16 years old; 5 years in the business)
Piercings: Left Nipple
Instagram follower count: 92k (as of May 2025)
About Mollie O'Callaghan
Mollie Grace O’Callaghan OAM is an Australian freestyle swimmer and Olympic gold medallist. She is renowned for her powerful finishes and exceptional underwater technique, making her one of the most formidable competitors in international swimming.
Early Life and Career Beginnings:
Born in Queensland, Australia, O’Callaghan began swimming at the age of four and entered her first competition three years later. Her international debut came in 2019 at the World Championships in Budapest, where, at just 15, she secured a silver medal in the women’s 4×100m freestyle relay.
Olympic Success:
At the 2020 Tokyo Olympics, O’Callaghan contributed to Australia’s success by swimming in the preliminaries of all three women’s relays, earning two gold medals and one bronze. 
Her performance peaked at the 2024 Paris Olympics, where she won gold in the 200m freestyle with an Olympic record time of 1:53.27, surpassing teammate Ariarne Titmus. She also secured gold in the 4×100m freestyle relay, silver in the 4×200m freestyle relay, and bronze in the 100m freestyle, making her Australia’s most decorated athlete at the Games.  
World Championships and Records:
At the 2023 World Aquatics Championships in Fukuoka, O’Callaghan made history by becoming the first woman to win both the 100m and 200m freestyle titles at a single world championship. In the 200m freestyle final, she set a world record time of 1:52.85, breaking Federica Pellegrini’s 14-year-old record.
She was also part of three world-record-setting relay teams: the women’s 4×100m freestyle relay, the women’s 4×200m freestyle relay, and the mixed 4×100m freestyle relay. 
Personal Life and Training:
O’Callaghan trains under coach Dean Boxall at St Peters Western Swim Club in Brisbane. She has been open about her struggles with anxiety, particularly before major competitions, and credits her support system—including her coach, psychologist, and family—for helping her manage these challenges.
In recognition of her contributions to sport, she was awarded the Medal of the Order of Australia in 2022.
Mollie O’Callaghan’s remarkable achievements and resilience have solidified her status as one of Australia’s premier swimmers and an inspiration to athletes worldwide.
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