Kayla Han is an American competitive swimmer specializing in freestyle and individual medley events. She is the 2022 Junior Pan Pacific Championships silver medalist in the 400-meter individual medley. At the 2021 U.S. Open Championships, Han achieved a fourth-place finish in the 400-meter individual medley and placed seventh in the 800-meter freestyle. She won the B-final of the 400-meter individual medley in Wave I of the 2020 USA Swimming Olympic Trials where she was the youngest swimmer to compete at 13 years of age. A video clip of the race posted by NBC Sports on YouTube became the most viewed clip from the year's Olympic trials.