Vallet is a surname. It may refer to:
Auguste Vallet de Viriville, (1815–1868), French archivist and historian Bernard Vallet (born 1954), French road bicycle racer Cédric Vallet (born 1971), French cross-country skier Edouard Vallet (1876–1929), Swiss artist. Francisco de Paula Vallet (1883–1947), Spanish Jesuit priest Frédérique Vallet-Bisson (1862–1949), French painter María Vallet-Regí (born 1946), Spanish inorganic chemist. Nicolas Vallet (1583–1642), French lutenist and composer Pierre Vallet (1575–1657), French botanical artist, engraver and embroidery designer