Patrick Sammon (born August 6, 2003) is an American competitive swimmer. At the 2025 World Aquatics Championships, he won a gold medal in the mixed 4ÃÂ100 metre freestyle relay. He currently competes at the collegiate level for Arizona State University.
In 2021, Sammon committed to Arizona State University where he is a member of the swim team.
During the 2024 NCAA Division I Men's Swimming and Diving Championships, Sammon won a gold medal in the 400 freestyle relay with an NCAA record time of 2:43.40 and helped Arizona State win their first NCAA swimming and diving championship in program history.
At the 2025 USA Swimming Championships, he placed second in the 100-meter freestyle with a personal-best time of 47.47. As a result, he was named to team USA's roster for the 2025 World Aquatics Championships. During the competition he won a gold medal in the mixed 4ÃÂ100 metre freestyle relay with a world record time of 3:18.48.