Voisin is a surname, and may refer to:
, brother of Charles Voisin
See also Roch Voisine (born 1963), Canadian singer-songwriter, actor, and radio and TV host Catherine Monvoisin, known as "La Voisin" (1640–1680), French sorceress during the reign of Louis XIV Marie Taglioni, Comtesse de Voisins (1804–1884), Swedish ballet dancer