Courtois may refer to: Locations. Courtois-sur-Yonne, a commune in Yonne department, France. Courtois, Missouri, an unincorporated community. Courtois Creek, a creek in Missouri. Courtois Hills, a region in Missouri. Persons. Painters. Jean Courtois (herald) (died 1436), French herald. Jacques Courtois (1621–1676), French painter. Guillaume Courtois (1628–1679), French painter. Marie Courtois (c.1655–1703), French miniature painter. Gustave-Claude-Etienne Courtois (1852–1923), French painter. Science, medicine, technology. Bernard Courtois (1777–1838), French chemist, discoverer of iodine.
https://en.wikipedia.org/wiki/Courtois