Joseph Marchand (August 17, 1803 – November 30, 1835) was a French missionary in Vietnam, and a member of the Paris Foreign Missions Society.
Marchand was born in Passavant, in the Doubs department of France. In 1833, he joined the Lê Văn Khôi revolt by Lê Văn Khôi, son of the late governor of southern Vietnam Lê Văn Duyệt. Khoi and Marchand vowed to overthrow Emperor Minh Mạng and replace him with My Duong, the son of Minh Mạng's late elder brother Nguyễn Phúc Cảnh, who were both Catholics. Marchand and Khoi appealed to the Catholics to join in overthrowing Minh Mạng and installing a Catholic emperor. They quickly seized the Citadel of Saigon and the uprising lasted two years.
He was arrested and executed in 1835 in Saigon and subsequently made a Catholic martyr, by having his flesh pulled by tongs (the torture of a thousand cuts).
He was canonized by Pope John Paul II in 1988. His feast day is November 30, and his joint feast day with the Vietnamese Martyrs is November 24.