Juan Manuel Celaya Hernández (born 1 September 1998) is a Mexican diver. He participated at the 2019 World Aquatics Championships, winning a medal. He also competed in the men's synchronized 3 meter diving event at the 2021 Olympic Games held in Tokyo, where he placed fourth alongside partner Yahel Castillo.
At the 2024 Paris Olympics, he won the Silver Medal in synchronized diving.