Theys (surname)

Theys (Flemish: variant of Thijs from a short form of the personal name Mathijs Dutch form of Matthew) is a surname. Notable people with the surname include:
 * Daniël Theys, (born 1953), Belgian glassmaker
 * Didier Theys (born 1956), Belgian sports car driver
 * Frank Theys, (born 1963), Belgian filmmaker and visual artist
 * Lucien Theys (1927–1996), Belgian long-distance runner