Martine Franck was a British-Belgian documentary and portrait photographer. She was a member of Magnum Photos for over 32 years. Franck was the second wife of Henri Cartier-Bresson and co-founder and president of the Henri Cartier-Bresson Foundation.

Magnum Photos is an international photographic cooperative owned by its photographer-members, with offices in Paris, New York City, London and Tokyo. It was founded in 1947 in Paris by photographers Robert Capa, David "Chim" Seymour, Maria Eisner, Henri Cartier-Bresson, George Rodger, William Vandivert, and Rita Vandivert. Its photographers retain all copyrights to their own work.