Pierre Lacour, originally Delacour (15 April 1745 – 28 January 1814) was a French painter.

He spent some time in Rome sometime around 1771 and became an Agrégé at the Académie nationale des sciences, belles-lettres et arts de Bordeaux [fr] in 1772.

His first exhibit at the Salon came in 1796; the same year he was named a corresponding member of the Académie des beaux-arts.

His many students included Pierre-Nolasque Bergeret, Jean Alaux and Jean-Bruno Gassies.

Upon his death, his son, also named Pierre Lacour, succeeded him as Curator of the museum.