Celso-Léon Lê Văn Đệ (Mỏ Cày, Bến Tre 24 August 1906-Saigon, 16 March 1966) was a Vietnamese painter. A Roman Catholic, he was in charge of Asian Arts at the International Exhibition of Catholic Press at Vatican in 1936. He established the École supérieure nationale des Beaux Arts in Saigon.
Some of his works have been shown at the Vietnam National Museum of Fine Arts, Hanoi. Others are exhibited in Europe. A wall panel, Mater Amabilis and Saint Magdalene at the food of the cross was on show at the Missionaria Arte museum at the Vatican.