Léon Athanase Gosselin (16 January 1815, in Paris – 30 April 1887) was a French surgeon remembered for describing the Gosselin fracture in 1866. He was chief of surgery at the Hôpital de la Charité in Paris. During his career, Gosselin excelled in the fields of orthopedics, anatomy, physiology and urology. He is remembered for his research on diseases of the testicles, spermatic cord and scrotum, and their effect on fertility and virility. In this regard he is considered a pioneer of andrology.