200px|thumb|right|Louis Arsène Delaunay
Louis-Arsène Delaunay (1826–1903), French actor, was born in Paris, the son of a wine-seller. He studied at the Conservatoire, and made his first formal appearance on the stage in 1845, in Molière's Tartuffe at the Odéon, where he was engaged for two years as a lead juvenile. He continued to act as jeune premier until he was sixty, his grace, marvellous diction and passion enchanting his audiences. It was especially in the plays of Alfred de Musset that his gifts found their happiest expression. In the 37 years during which he was a member of the Comédie-Française, Delaunay took or created nearly two hundred parts.