Henri Charles Antoine Gaston Serpette (4 November 1846 – 3 November 1904) was a French composer, best known for his operettas. After winning the prestigious Prix de Rome as a student at the Paris Conservatoire, he was expected to pursue a career in serious music. Instead, he turned to operetta, writing more than twenty full-length pieces between 1874 and 1900. He accepted some conducting work and also served as a critic and journalist for a number of French newspapers and magazines.