Anciens Etablissements Pieper is a Belgian arms manufacturer established under the name Henri Pieper in Herstal, Belgium in 1884 (some sources use 1866), by Henri Pieper. In 1898, it was renamed to Nicolas Pieper, and it became the Anciens Etablissements Pieper in 1905. It stayed in business until approximately 1950. The company used the Bayard trade name and manufactured Bergmann-Bayard pistol and Bayard 1908 pistol.