Henri Charles Manguin (Paris, March 23, 1874 - 1949) was a French painter, associated with Les Fauves.
Manguin entered the Ecole des Beaux-Arts to study under Gustave Moreau, as did Matisse and Charles Camoin with whom he became close friends. Like them, Manguin made copies of Renaissance art in the Louvre.
Manguin was very much influenced by impressionism, as is seen in his use of bright pastel hues.
He married in 1899 and made numerous portraits of his wife, Jeanne, and their family. In 1902, Manguin had his first exhibition at the Salon des Independants and d'Automne. Many of his paintings were of Mediterranean landscapes; these represented the height of his career as a Fauve artist.
He traveled extensively with Albert Marquet throughout Southern Europe. In 1949, Manguin left Paris to settle in Saint-Tropez.