Leah Hayes (born October 21, 2005) is an American swimmer, currently swimming for the Illinois-based team Fox Valley Park District Riptides.

[14] At the 2023 World Aquatics Junior Swimming Championships in Netanya, Israel, Hayes set two new course records.

Hayes is now ranked 6th all-time in the girls’ 17-18 age group in the United States in the 400m individual medley.

[5] Hayes also set another course record with her gold medal win in the 200m individual medley with a time of 2:10.24.

[15] She later earned a second gold medal as part of the girls’ 4x200m freestyle relay along with Addison Sauickie, Lynsey Bowen, and Madi Mintenko, with a time of 7:52.48.