Balthasar Klossowski de Rola, known as Balthus, was a Polish-French modern artist.

Balthus`s style is primarily classical. His work shows numerous influences, including the writings of Emily Brontë, the writings and photography of Lewis Carroll, and the paintings of Masaccio, Piero della Francesca, Simone Martini, Poussin, Jean-Étienne Liotard, Joseph Reinhardt, Géricault, Ingres, Goya, Jean-Baptiste-Camille Corot, Courbet, Edgar Degas, Félix Vallotton and Paul Cézanne. Although his technique and compositions were inspired by pre-renaissance painters, there also are eerie intimations of contemporary surrealists like de Chirico. Painting the figure at a time when figurative art was largely ignored, he is widely recognised as an important 20th-century artist.

Many of his paintings show young girls in an erotic context. Balthus insisted that his work was not erotic but that it recognized the discomforting facts of children`s sexuality. In 2013, Balthus`s paintings of adolescent girls were described by Roberta Smith in the New York Times as both "alluring and disturbing".