Catherine McKiernan is a retired Irish long-distance runner, known for her achievements in road racing and cross-country events. Born on May 26, 1972, in Cavan, Ireland, she gained prominence in the 1990s and early 2000s, representing Ireland in various international competitions. Throughout her career, McKiernan set multiple national records and won several prestigious races, including the Dublin Marathon and the Great North Run. She is celebrated for her contributions to athletics in Ireland and remains an inspiration for aspiring runners in the sport.