Jean-Charles Cornay, French missionary and saint (d. 1837)

Jean-Charles Cornay, (27 February 1809 – 20 September 1837) was a French missionary of the Paris Foreign Missions Society who was martyred in Vietnam. He was executed in Ha Tay, Tonkin, now Vietnam, during the persecutions of Emperor Minh Mạng.

A town in France still carries his name.

Cornay was beatified on 27 May 1900, and canonized by Pope John Paul II on 19 June 1988.