Giuseppe Cades (* 8. December 1750 in Rome; 8. December 1799 ibid.; more rarely also Joseph Cades) was an Italian painter and graphic artist.
He grew up in Rome as the son of a French father. Cades became particularly famous for his ability to deceptively copy and imitate the works of old masters. The director of the Dresden Gemäldegalerie is said to have considered one of his hand drawings to be a "real Raphael" even after Cades's insurance of his authorship.
Cades' own works were considered skilful, but not very original. His own late style, which gradually developed under the influence of French painting (including Jacques-Louis Davids), could no longer come to full bloom after his untimely death.
One of his most famous works was the encounter between Count Gautier d'Angers and his daughter Violante, created for the Villa Borghese in Rome.