Giuseppe De Cristoforis (or De Cristofori) (11 October 1803 – 27 December 1837, also Milan) was an Italian naturalist and collector.
Also known as Joseph de Cristoforis or Giuseppe Cristofori, he was born in Milan. He studied entomology, specialising in Coleoptera. He was a natural history and insect dealer in Milan.
His collections, merged with those of Giorgio Jan, were the basis of Museo Civico di Storia Naturale of Milan. He bequeathed them to the city in 1832 on the condition that the municipality created a natural history museum curated by his friend Giorgio Jan.
He died at Milan in 1837.