Giuseppe Molteni (1800-1867) was an Italian painter.
Forced to abandon his studies at the Brera Academy for financial reasons, Molteni took up the restoration of ancient paintings as a pupil of Giuseppe Guizzardi in Bologna.
On his return to Milan, he soon became one of the most sought-after restorers of the day, a consultant to the Louvre and the British Museum as well as the leading collectors and connoisseurs in Milan and Europe as a whole.