10 Largest Lakes in Europe
Published: 9 Sep 2026
Europe’s largest lakes are mostly found in the north and northeast, especially in Russia, Finland, and Sweden. Many were shaped by glaciers during the last Ice Age, while others are huge reservoirs created by dams. Some are so large that, from the shoreline, they look and feel more like seas than lakes.
For travelers, these lakes offer very different experiences, from quiet Finnish forests and Swedish islands to the vast waters of northwestern Russia. Here are the 10 largest lakes in Europe by surface area, including both natural lakes and major reservoirs, with their location, size, and key facts.
Quick Facts About Largest Lakes in Europe
- Largest: Lake Ladoga in Russia
- Second largest: Lake Onega in Russia
- Largest lake in Sweden: Lake Vänern
- Largest lake in Finland: Lake Saimaa
- Largest lake shared by two countries: Lake Peipus, between Estonia and Russia
- Natural lakes: Lake Ladoga, Lake Onega, Lake Vänern, Lake Saimaa, and Lake Peipus
- Large reservoirs: Kuybyshev, Rybinsk, Volgograd, Tsimlyansk, and Kremenchuk
- Where most are found: Russia and northern Europe
- Ranking method: Surface area
1. Lake Ladoga, Russia
- Surface area: 17,700 km²
- Location: Northwestern Russia, east of Saint Petersburg
- Length: 219 km
- Maximum depth: 230 m
- Type: Natural freshwater lake
- Notable wildlife: Ladoga ringed seal
Lake Ladoga is the largest lake in Europe, covering about 17,700 km². It lies between the Republic of Karelia and Leningrad Oblast, with Saint Petersburg to the southwest. At around 219 km long and up to 83 km wide, it is large enough that parts of the shoreline feel surprisingly remote.
Glaciers shaped much of Lake Ladoga during the last Ice Age. The northern part has a rocky coastline and numerous islands, while the southern shore is generally lower and flatter. Its water drains into the Neva River, which flows toward the Gulf of Finland.
The lake is also home to the Ladoga ringed seal, a freshwater seal found only in Lake Ladoga. Other fish found here include smelt, bream, ruffe, and Arctic char.
For travelers, the Valaam Archipelago is one of the best-known places on Lake Ladoga. Boating, fishing, hiking, and nature trips are popular around the lake, although its huge size means that choosing the right area to visit makes a difference.
2. Lake Onega, Russia
- Surface area: 9,894 km²
- Location: Northwestern Russia
- Maximum depth: 127 m
- Type: Natural freshwater lake
- Islands: About 1,650
- Famous landmark: Kizhi Pogost
Lake Onega is the second-largest lake in Europe, covering about 9,894 km². It sits in northwestern Russia, mainly within the Republic of Karelia, with parts of the lake extending into Leningrad and Vologda oblasts. It is just east of Lake Ladoga, making this one of Europe’s most lake-rich regions.
Around 50 rivers and streams flow into Lake Onega, including the Shuya, Suna, Vodla, and Vytegra. The lake also has roughly 1,650 islands, ranging from small rocky outcrops to larger forested islands.
The best-known is Kizhi Island, home to the Kizhi Pogost, a historic group of wooden churches and other buildings. The site dates back several centuries and is listed as a UNESCO World Heritage Site, making it one of the main cultural attractions around Lake Onega.
For travelers, Lake Onega combines forests, islands, waterways, and traditional wooden architecture. Kizhi is the main draw, but the surrounding Karelian landscape is also worth exploring for those interested in nature and quieter parts of northern Russia.
3. Kuybyshev Reservoir, Russia
- Surface area: 6,450 km²
- Location: Volga River, western Russia
- Type: Artificial reservoir
- Created: 1950s
- Main river: Volga
- Also known as: Samara Reservoir
Kuybyshev Reservoir is the largest reservoir in Europe, covering about 6,450 km². It was created on the Volga River in the 1950s following the construction of the Zhiguli Hydroelectric Station near Zhigulevsk.
The reservoir stretches across a large part of central Russia, reaching areas around Kazan, Ulyanovsk, and Tolyatti. Its size is remarkable for a man-made body of water, and several major cities and towns sit along its shores.
Construction of the dam flooded large areas of the Volga valley, creating the wide reservoir that exists today. It plays an important role in hydroelectric power generation, shipping, fishing, and water management along the Volga.
For travelers, the reservoir is less about a single landmark and more about the Volga landscape and riverside cities around it. Boat trips, fishing, beaches, and views across the broad stretches of water are among the main ways to experience the area.
4. Lake Vänern, Sweden
- Surface area: 5,655 km²
- Location: Southwestern Sweden
- Type: Natural freshwater lake
- Largest lake in: Sweden and the European Union
- Main inflows: Klarälven, Byälven, Norsälven
- Average depth: 27 m
Lake Vänern is the largest lake in Sweden and the largest lake in the European Union, covering about 5,655 km². It stretches across the Swedish provinces of Värmland, Västergötland, and Dalsland, and its shoreline is dotted with towns, forests, islands, and smaller waterways.
Several rivers feed the lake, including the Klarälven, Byälven, and Norsälven. Despite its large surface area, Vänern is relatively shallow compared with some of Europe’s other major lakes, with an average depth of around 27 m.
The lake has long been important to communities around its shores. Fishing, timber transport, shipping, and other industries have all relied on Vänern, while its fish populations include salmon, trout, whitefish, and vendace.
For travelers, Lake Vänern is a good place to experience Swedish lakeside scenery without heading into the mountains. Its islands, coastal villages, walking routes, and opportunities for boating and fishing make the lake and its surrounding region worth exploring.
5. Rybinsk Reservoir, Russia
- Surface area: 4,580 km²
- Location: Northwestern Russia, on the Volga
- Type: Artificial reservoir
- Created: 1941–1947
- Main rivers: Volga, Sheksna, Mologa
- Also known as: Rybinsk Sea
Rybinsk Reservoir covers about 4,580 km², making it one of the largest artificial lakes in Europe. It was created on the Volga River in the 1940s as part of a major Soviet hydroelectric project, with the Rybinsk Hydroelectric Station controlling the reservoir.
The reservoir took several years to fill, from 1941 to 1947, and its creation changed a large area of the surrounding landscape. The rising water also submerged the historic town of Mologa, whose residents were relocated before the area was flooded.
Today, the reservoir is fed by the Volga, Sheksna, and Mologa rivers and remains important for hydropower, shipping, fishing, and water management. Its enormous open stretches of water have also earned it the local nickname “Rybinsk Sea.”
For travelers, the area around Rybinsk offers river scenery, fishing, boating, and access to historic towns and villages. It is a different experience from Europe’s natural glacial lakes, but its scale makes it an important part of this list of the continent’s largest lakes and reservoirs.
6. Lake Saimaa, Finland
- Surface area: 4,377 km²
- Location: Southeastern Finland
- Type: Natural freshwater lake system
- Notable wildlife: Saimaa ringed seal
- Known for: Islands, waterways, and forests
Lake Saimaa is Finland’s largest lake and the sixth-largest entry in this ranking. Covering about 4,377 km², it is not a simple open body of water. Saimaa is a large network of connected basins, islands, channels, and smaller lakes spread across southeastern Finland.
The landscape was shaped by glaciers, leaving behind the rocky islands and irregular shoreline that make the lake so distinctive. Numerous waterways connect Saimaa with other parts of Finland, while the Saimaa Canal provides a route toward the Gulf of Finland.
Lake Saimaa is home to the Saimaa ringed seal, one of Finland’s best-known and most endangered animals. The lake is also an important habitat for fish and other wildlife.
For travelers, Saimaa is a good choice for canoeing, boating, fishing, hiking, and staying in lakeside cottages. The many islands and sheltered waterways make it especially appealing if you want to explore Finland’s lake country at a slower pace.
7. Lake Peipus, Estonia and Russia
- Surface area: 3,555 km²
- Location: Estonia–Russia border
- Type: Natural freshwater lake
- Maximum depth: About 15 m
- Main sections: Peipsi, Lämmijärv, and Pihkva
- Notable feature: One of Europe’s largest transboundary lakes
Lake Peipus is one of the largest lakes in Europe and lies on the border between Estonia and Russia, covering about 3,555 km². It is actually a connected lake system made up of the larger Peipsi basin in the north, Pihkva in the south, and the narrower Lämmijärv between them.
The lake is relatively shallow, with a maximum depth of around 15 m. Its waters support fish such as whitefish, perch, bream, and roach, while the surrounding wetlands and shoreline provide habitat for a range of bird species.
Lake Peipus also has an important place in European history. In 1242, the Battle of the Ice was fought in this region between forces led by Alexander Nevsky and the Teutonic Knights.
For travelers, the Estonian side offers lakeside villages, beaches, fishing, birdwatching, and quiet countryside. The lake is particularly interesting for visitors who want to combine nature with the history of the Estonia-Russia border region.
8. Volgograd Reservoir, Russia
- Surface area: 3,117 km²
- Location: Volga River, Russia
- Type: Artificial reservoir
- Length: About 540 km
- Created: 1950s–1961
- Main purpose: Hydropower, navigation, and water management
Volgograd Reservoir covers about 3,117 km², making it one of the largest artificial lakes in Europe. It stretches for roughly 540 km along the Volga River, passing through parts of Saratov and Volgograd oblasts.
The reservoir was created following construction of the Volga Hydroelectric Station, which was completed in 1961. The project transformed a long section of the Volga into a broad reservoir used for hydroelectric power, navigation, irrigation, and water management.
Unlike the smaller, more enclosed natural lakes elsewhere on this list, Volgograd Reservoir is long and relatively narrow, following the course of the Volga. Several cities and settlements sit along its shores.
For travelers, the reservoir is mainly experienced through the Volga riverside towns, boating, fishing, and open-water views rather than as a single sightseeing destination.
9. Tsimlyansk Reservoir, Russia
- Surface area: 2,702 km²
- Location: Don River, southern Russia
- Type: Artificial reservoir
- Created: 1952
- Main rivers: Don and its tributaries
- Uses: Hydropower, irrigation, navigation
Tsimlyansk Reservoir covers around 2,702 km² along the Don River in southern Russia, across parts of Rostov and Volgograd oblasts. It was created in the early 1950s as part of a major water-management and hydroelectric project.
The reservoir helped improve navigation along the Don and provided water for irrigation and agriculture in an area where rainfall can be limited. Its water is also used for fishing and other local activities.
The surrounding landscape is quite different from the forested lake regions of northern Europe. The reservoir sits among the steppe landscapes of southern Russia, with agricultural land extending around much of its shoreline.
For travelers, Tsimlyansk is more of a regional destination than a major international attraction. The reservoir and surrounding countryside are best suited to fishing, boating, and exploring the Don region.
10. Kremenchuk Reservoir, Ukraine
- Surface area: 2,250 km²
- Location: Dnieper River, Ukraine
- Type: Artificial reservoir
- Created: 1959–1961
- Major cities nearby: Cherkasy and Kremenchuk
- Main uses: Hydropower, navigation, fishing, irrigation
Kremenchuk Reservoir covers about 2,250 km² on the Dnieper River in central Ukraine, making it the largest reservoir on the Dnieper. It was created in the late 1950s and early 1960s as part of Ukraine’s wider hydroelectric and water-management system.
The reservoir supports several important uses, including hydroelectric power generation, navigation, irrigation, and fishing. Its wide water surface and long shoreline have also shaped the landscape around cities such as Cherkasy and Kremenchuk.
Kremenchuk Reservoir is the final entry in this ranking of the largest lakes in Europe by surface area. Like several others near the bottom of the list, it is a man-made body of water rather than a natural lake, which is why explaining the ranking method is important for readers.
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