Overview
Katherine Cadwallader Douglass is an American competitive swimmer. Douglass is a five-time Olympic medalist, including two golds, and has won 34 medals with 16 golds at the World Championships. She is the world record holder for the short-course 100 m freestyle, 200 m breaststroke, and 200 m individual medley, and former world record holder for the long-course 50 m freestyle.