Cocquio-Trevisago  Cocquio-Trevisago (; ) is a "comune" (municipality) in the Province of Varese in the Italian region of Lombardy, located about northwest of Milan and about northwest of Varese. As of 31 December 2004, it had a population of 4,701 and an area of . Cocquio-Trevisago borders the following municipalities: Azzio, Besozzo, Cuvio, Gavirate, Gemonio, Orino.