Malgesso is a comune (municipality) in the Province of Varese in the Italian region Lombardy, located about 60 kilometres (37 mi) northwest of Milan and about 13 kilometres (8 mi) west of Varese. As of 31 December 2004, it had a population of 1,253 and an area of 2.8 square kilometres (1.1 sq mi).

Malgesso borders the following municipalities: Bardello, Besozzo, Brebbia, Bregano, Travedona-Monate.