Vallette is a French surname. Notable people with the surname include:

• Alfred Vallette (1858–1935), French man of letters
• Marguerite Vallette-Eymery (1860–1953), French novelist and playwright
• Bruno Vallette [fr] (born 1976), French mathematician
• Henri Vallette [fr] (1877–1962), Swiss sculptor
• Jean Vallette d'Osia (1898–2000), French general best known for his action in the French Resistance
• Maurice Vallette [fr] (1851–1880), French graveur
• Michel Vallette d'Osia [fr] (1926–2009), French officer
• Paul Vallette [fr] (1872–1953), French professor
• Pierre Vallette [fr] (fl. 1552–1561)
• Pierre Vallette-Viallard [fr] (1883–1968), French politician
• René Vallette [fr] (1874–1956), French painter
• Thibaut Vallette (born 1974), French equestrian
• Yves Vallette [fr] (1920–2014), French explor

• Valletta (surname)
• La Vallette