Casey O'Brien is an American college ice hockey forward for the University of Wisconsin in the National Collegiate Athletic Association (NCAA). A dynamic left-handed shooter, O'Brien is known for her elite scoring ability, speed, and playmaking skills. In 2025, she earned the prestigious Patty Kazmaier Award, recognizing her as the top player in NCAA women’s ice hockey. Her offensive instincts and leadership make her a cornerstone of Wisconsin’s success on the ice. Casey O'Brien continues to impress as one of the brightest talents in college hockey, with a promising future in the sport and a growing legacy in women’s ice hockey.