The athlete with the most caps in international football history is Kristine Lilly. She represented the United States Women's National Team and accumulated a remarkable 354 caps from 1987 to 2010. Lilly's longevity and consistent performance contributed to her status as a trailblazer in women's football. Her career included winning two FIFA Women's World Cups and two Olympic gold medals, making her one of the most decorated female footballers. Lilly's impact on the sport continues to inspire aspiring athletes around the world.