Brissago (Italian: [brisˈsaːɡo], Swiss Standard German: [brɪˈsaːɡoː] ) is a municipality in the district of Locarno in the canton of Ticino in Switzerland, bordering Italy. Brissago lies on the western shore of Lake Maggiore and includes the Brissago Islands .

An ax and ceramic pieces from the Neolithic era as well as Roman coins and other finds, discovered in 1846 in Brenscino, indicate that the area was prehistorically settled. In 1863, during the construction of the main road, some graves were discovered. Fragments of a grave stele with inscriptions were built into the (now destroyed) Church of San Pancrazio on Isola Grande.

Brissago is first mentioned in 1289 as Brixago.