Prosper Montagné (pronounced [pʁɔs.pɛʁ mɔ̃taɲe]) (14 November 1865 – 22 April 1948) was a French chef and author of many books and articles on food, cooking, and gastronomy, notably the Larousse Gastronomique.
Montagné was born in Carcassonne, Aude. Upon leaving the Lycée de Carcassonne, he wished to become an architect, but this proved impossible. His father acquired l'Hotel des Quatre-Saisons in Toulouse, with his son as a chef – the beginning of an illustrious career.
He apprenticed at the Grand Hôtel of Paris and the Hotel d'Angleterre of Cauterets, then worked at various restaurants in Paris and San Remo, and the Hôtel de Paris of Monte Carlo. In 1900, he returned to Paris and was chef of the Pavillon d'Armenonville, the Pavillon Ledoyen, and finally the Grand Hotel where he stayed for 10 years. Later, he had his own restaurant, the Montagné, and was a consultant to La Reine Pédauque.
He wrote many books on cooking, including Le grand livre de cuisine—considered his masterpiece, La grande cuisine illustrée, and Larousse Gastronomique with Prosper Salles; Bonne chère, pas chère, La cuisine diétique, Les délices de la table, Le livres des cuisines militaires, Mon menu, and Le festin occitan. He also contributed to many newspapers and magazines, and was editor in chief of the Revue culinaire.
He lends his name to the Club Prosper Montagné, a trade association of French food professionals.
Montagné was a Knight of the Légion d'Honneur.