Henri Decoin (18 March 1890 – 4 July 1969) was a French film director and screenwriter, who directed more than 50 films between 1933 and 1964. He was also a swimmer who won the national title in 1911 and held the national record in the 500 m freestyle.

He competed in the 400 m freestyle at the 1908 Summer Olympics and in the water polo tournament at the 1912 Summer Olympics. During World War I Decoin served as a pilot. After that he worked as a sports journalist for L'Auto, L'Intransigeant and Paris-Soir.