Giuseppe Nicola Summa, known as Ninco Nanco (April 12, 1833 - March 13, 1864), was an Italian brigand.
One of the most important brigands after the Italian unification, he was a lieutenant of Carmine Crocco, band chief of the Vulture area, in Basilicata.
He was known for his brilliant guerrilla warfare and for his brutality against his enemies.