De la Vallée is a French surname. Notable people with the surname include:
People De la Vallée family, family of Swedish architects Charles Jean de la Vallée Poussin (1866–1962), Belgian mathematician Charles-Louis de la Vallée Poussin (1827–1903), Belgian geologist and mineralogist Étienne de La Vallée Poussin (1735–1802), French history painter Gerard de la Vallée (1596–1667), Flemish painter Jean de la Vallée (1620–1696), French-Swedish architect Louis de La Vallée-Poussin (1869–1938), Belgian indologist Marin de la Vallée (1560–1655), French architect Melchior de la Vallée (died 1631), French priest Simon de la Vallée (1590–1642), French-Swedish architect
See also Vallée Delavallée