Janet Ely (later Lagourgue and Thorburn, born September 12, 1953) is a retired American female diver. She competed at the 1972 and 1976 Olympics and finished fourth in 1972, both in the 3 m springboard and 10 m platform. In 1975 she won the world title in the platform and placed second at the Pan American Games. Domestically Ely held the AAU platform titles in 1972 and 1975.