George Desvallières (French pronunciation: [ʒɔʁʒ devaljɛʁ]; 1861–1950) was a French painter.
A native of Paris, Desvallières was a great-grandson of academician Gabriel-Marie Legouvé, and received a religious upbringing. He studied at the Académie Julian with Tony Robert-Fleury and with Jules Valadon at the École des Beaux-Arts. He painted portraits at first, but a relationship with Gustave Moreau turned him towards an interest in mythology and religion. His daughter Sabine Desvallières, who later became a nun, is remembered for her embroidery.