Jacques-Henry Rys (1909–1960) was a 20th-century French composer and conductor.
In the late 1940s and during the 1950s, Jacques-Henry Rys was a renowned conductor of light music, who led many recordings for major pop stars of the era, including Luis Mariano, Andrex, Yvette Giraud, Georges Guétary.
Jacques-Henry Rys became known by the quality of the orchestrations of the first operetta by Francis Lopez, which contributed to its success: La Belle de Cadix [fr] (1945) of which he conducted the first performances at the Casino Montparnasse, Andalousie (1947), Quatre jours à Paris (1948), Monsieur Bourgogne (1949), La Route fleurie [fr] (1952), Tête de Linotte (in collaboration with Paul Bonneau, 1957).
At the request of Germaine Roger, director of the Théâtre de la Gaîté-Lyrique, Jacques-Henry Rys wrote the musical score for two successful operettas: Colorado in 1950, and Pampanilla in 1954.
He also collaborated with Henri Bourtayre on the composition of the operetta Les Chevaliers du ciel (1955).