Casey O'Neill

Casey O'Neill (born 7 October 1997) is an Australian mixed martial artist currently competing in the Flyweight division of the Ultimate Fighting Championship (UFC). Born in Irvine, Scotland, O'Neill spent her early years in Kilmarnock before moving to Australia's Gold Coast at the age of 10. She began her martial arts journey at the age of four with kickboxing and later added Brazilian jiu-jitsu to her training regimen. At the age of 15, O'Neill had her first amateur MMA fight, facing an opponent four years older than her. Despite early defeats, she remained dedicated to improving her skills. As of September 19, 2023, O'Neill is ranked #14 in the UFC women's flyweight rankings.