Henri Focillon (7 September 1881 – 3 March 1943) was a French art historian. He was the son of the printmaker Victor-Louis Focillon. He was Director of the Musée des Beaux-Arts in Lyon. Professor of Art History at the University of Lyon, at the Ecole des Beaux-Arts in Lyon, at the Sorbonne, at the Collège de France and then in the United States, where he went into exile and taught at Yale University. A poet, printmaker, and teacher, Focillon trained generations of art historians, including George Kubler. He remains best known for his works on medieval art, most of which were translated into English.[1][2][3][4]