Maurice Chabas (21 September 1862, Nantes – 11 December 1947, Versailles) was a French Symbolist painter.
In 1910 he met the Belgian Gabrielle Storms-Castelot, and they had two children, the writer André Castelot and the actor Jacques Castelot.
Chabas came from a family of painters. Being the eldest child, he had to take over the family business, although he was interested in painting. His younger brothers, Maurice and Paul, were renowned painters.
In 1900, Chabas moved to Neuilly-sur-Seine, where his studio became a hub for scholars like Camille Flammarion, Charles Richet, Maurice Maeterlinck, Léon Bloy, Lucien Lévy-Brulh, Joséphin Péladan, Edouard Schuré, and René Guénon. Until he moved to Neuilly-sur-Seine, Chabas was a little-known figure. That changed after 1900, when his popularity escalated.