Dávid Betlehem (born 4 September 2003) is a Hungarian competitive pool and open water swimmer. At the 2020 European Aquatics Championships, he won a bronze medal in the 5 kilometre open water team relay. He won the silver medal in the 1500-metre freestyle at the 2021 European Junior Swimming Championships. At the 2022 World Aquatics Championships, he won a silver medal in the open water 4×1500-metre team relay.