Orchestre du Théâtre des Champs-Élysées is a French orchestra formed as the resident ensemble of the Théâtre des Champs-Élysées in Paris, originating in the early 20th century and performing orchestral and operatic repertoire. The ensemble has specialised in classical, romantic and modern repertoire and has been associated with the theatre's programme of contemporary and 20th-century works, contributing to Parisian musical life through regular concert and operatic seasons.