Gregory ("Greg") Louganis (born January 29, 1960 in El Cajon, California) is an American diver who is best known for winning back-to-back Olympic titles in both the 3m and 10m diving events. He received the James E. Sullivan Award from the Amateur Athletic Union (AAU) in 1984 as the most outstanding amateur athlete in the United States. Louganis is of Samoan/Swedish descent and was raised in California by his adoptive parents, a Greek-American couple.
At age 16, Louganis took part in the 1976 Summer Olympics in Montreal, Canada where he placed second in the tower event, behind Italian Klaus Dibiasi. Two years later, with Dibiasi retired, Louganis went on to win his first world title in the same event.