Lake Coghinas (, ) is an
artificial lake
A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from t ...
, in northern
Sardinia
Sardinia ( ; ; ) is the Mediterranean islands#By area, second-largest island in the Mediterranean Sea, after Sicily, and one of the Regions of Italy, twenty regions of Italy. It is located west of the Italian Peninsula, north of Tunisia an ...
,
Italy
Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
, located in the province of
Sassari
Sassari ( ; ; ; ) is an Italian city and the second-largest of Sardinia in terms of population with 120,497 inhabitants as of 2025, and a functional urban area of about 260,000 inhabitants. One of the oldest cities on the island, it contains ...
. With a surface of 17.8 km
2 and a capacity of 254 million cubic metres of water, it is the second largest lake in the region (second only to
Lake Omodeo) and one of the major reservoirs in Italy.
The dam, constructed under
Fascism
Fascism ( ) is a far-right, authoritarian, and ultranationalist political ideology and movement. It is characterized by a dictatorial leader, centralized autocracy, militarism, forcible suppression of opposition, belief in a natural social hie ...
in 1924, is 185 metres long and 58 metres wide. It has the function of water supply, but also it has a hydroelectric power plant.
The lake is the home of a rich ecosystem, and it is become a tourist attraction, around its shores are present a youth hostel, restaurants, a sailing club.
Coghinas
Province of Sassari
{{Sardinia-geo-stub