Louis Michel Adolphe Deloffre was a French violinist and conductor active in London and Paris, who conducted several important operatic premieres in the latter city, particularly by Charles Gounod and Georges Bizet.

The Théâtre Lyrique was one of four opera companies performing in Paris during the middle of the 19th century. The company was founded in 1847 as the Opéra-National by the French composer Adolphe Adam and renamed Théâtre Lyrique in 1852. It used four different theatres in succession, the Cirque Olympique, the Théâtre Historique, the Salle du Théâtre-Lyrique, and the Salle de l'Athénée, until it ceased operations in 1872.