Amédée Henri Gustave Noël Gastoué (19 March 1873 – 1 June 1943) was a French musicologist and composer.
A Kapellmeister at the Église Saint-Jean-Baptiste de Belleville [fr], professor of gregorian chant at the Schola Cantorum of Paris, Gastoué was particularly interested in Byzantine music, that of the Middle Ages and Armenian musical art.
He also taught choral chant and Medieval music at the Institut catholique de Paris, the Collège Stanislas and the Lycée Montaigne.
He was president of the Société française de musicologie [fr] (1934–1936) and remains known for his studies and writings.
List according to the « Principaux ouvrages du même auteur » of Graduel et l'antiphonaire romains, histoire et description (fac-similé)