Longuet

Longuet is a surname of French origin. It may refer to :
 * Benjamin Longuet (1685–1761), English banker and Governor of the Bank of England 1747–49
 * Charles Longuet (1839–1903), French journalist and socialist
 * Charles Stephen Longuet (1861–1941), New Zealand lawyer and Mayor of Invercargill
 * Didi Longuet (born 1981), Dutch professional footballer
 * Edgar Longuet (1879–1950), French physician and socialist, grandson of Karl Marx
 * Gérard Longuet (born 1946), French conservative politician
 * Jean Longuet (1876–1938), French socialist, son of Jenny and Charles Longuet, grandson of Karl Marx
 * Jenny Longuet (1844–1883), daughter of Jenny and Karl Marx, and wife of Charles Longuet
 * Karl-Jean Longuet (1904–1981), French sculptor, son of Jean Longuet
 * Robert-Jean Longuet (1901–1987), French lawyer and journalist