Gian Giacomo Poldi Pezzoli d’Albertone (Milan, July 27, 1822 – Milan, April 6, 1879) was an Italian art collector, founder of the museum that bears his name, the Poldi Pezzoli Museum in Milan.
He was buried in Bellagio in the park of Villa Trivulzio in a neo-Gothic mausoleum built for him by Carlo Maciachini, architect of the Monumental Cemetery in Milan.