Locarno (Italian: [loˈkarno], German: [loˈkaʁno] ^ⓘ; Ticinese: Locarno [loˈkɑːrno]; formerly in German: Luggárus [luˈɡaːrʊs]) is a southern Swiss town and municipality in the district Locarno (of which it is the capital), located on the northern shore of Lake Maggiore at its northeastern tip in the canton of Ticino at the southern foot of the Swiss Alps. It has a population of about 16,000 (proper), and about 56,000 for the agglomeration of the same name including Ascona besides other municipalities.^[4]

The town of Locarno is located on the northeastern part of the river Maggia's delta; across the river lies the town of Ascona on the southwestern part of the delta.

Locarno is the 74th largest city in Switzerland by population^{[citation needed]} and the third largest in the Ticino canton, after Lugano and Bellinzona.

The official language of Locarno is Italian.

The town is known for hosting the Locarno International Film Festival which takes place every year in August and involves open-air screenings at the main square, the Piazza Grande. It is also known for the Locarno Treaties, a series of European territorial agreements negotiated here in October 1925.