Lorenzo Galossi (born 25 May 2006) is an Italian competitive swimmer. He is the world junior record and European junior record holder in the long course 800-metre freestyle and the European junior record holder in the long course 400-metre freestyle. At the 2022 European Junior Swimming Championships, he won medals in three individual events, the gold medal each in the 400-metre freestyle and the 800-metre freestyle and the silver medal in the 200-metre freestyle. At the 2022 European Aquatics Championships, he won the bronze medal in the 800-metre freestyle.