Lugano (luːˈɡɑːnoʊ, UKalsolʊˈɡænəʊ, luˈɡaːno; Lugan lyˈɡãː) is a city and municipality in Switzerland, part of the Lugano District in the canton of Ticino. It is the largest city of both Ticino and the Italian-speaking southern Switzerland. Lugano has a population () of , and an urban agglomeration of over 150,000. It is the ninth largest Swiss city.
The city lies on Lake Lugano, at its largest width, and, together with the adjacent town of Paradiso, occupies the entire bay of Lugano. The territory of the municipality encompasses a much larger region on both sides of the lake, with numerous isolated villages. The region of Lugano is surrounded by the Lugano Prealps, the latter extending on most of the Sottoceneri region, the southernmost part of Ticino and Switzerland. Both western and eastern parts of the municipality share an international border with Italy.
Described as a market town since 984, Lugano was the object of continuous disputes between the sovereigns of Como and Milan until it became part of the Old Swiss Confederation in 1513. In 1803, the political municipality of Lugano was created, following the establishment of the canton. Since 1882, Lugano is an important stop on the international Gotthard Railway. The rail brought a decisive contribution to the development of tourism and more generally of the tertiary sector which are, to this day, predominant in the economy of the city.
In 1956, Lugano hosted the first ever Eurovision Song Contest.
The toponym is first recorded in 804, in the form Luanasco, in 874 as Luano, and from 1189 as Lugano. German-language variants of the name (now no longer in use) were Lowens, Lauis, Lauwis, Louwerz.
The local Lombard form of the name is rendered Lugan.
The etymology of the name is uncertain, suggestions include derivation from Latin lucus ("grove"), from a vulgar Latin lakvannus ("lake-dweller") and from the god Lugus.
The shores of Lake Lugano have been inhabited since the Stone Age. Within the modern city limits (Breganzona, Castagnola, Davesco and Gandria) a number of ground stones or quern-stones have been found.