Rift lakes of Iceland

Mývatn () is a shallow lake situated in an area of active volcanism in the north of Iceland, near Krafla volcano. It has a high amount of biological activity. The lake and the surrounding wetlands provide a habitat for a number of waterbirds, especially ducks. The lake was created by a large basaltic lava eruption 2300 years ago, and the surrounding landscape is dominated by volcanic landforms, including lava pillars and rootless vents (pseudocraters). The effluent river Laxá is known for its rich fishing for brown trout and Atlantic salmon.

Þingvallavatn (, ), anglicised as Thingvallavatn, is a rift valley lake in southwestern Iceland. With a surface of it is the largest natural lake in Iceland. Its greatest depth is . At the northern shore of the lake, at Þingvellir (after which the lake is named), the Alþingi, the national parliament, was founded in the year 930, and held its sessions there until 1799 and still as of today the name Alþingi Íslendinga is carried by the parliament of Iceland.

Þórisvatn (; sometimes anglicized to Thorisvatn) is the largest lake of Iceland, situated at the south end of the Sprengisandur plateau within the highlands of Iceland.

Kleifarvatn () is the largest lake on the Reykjanes Peninsula in Iceland, situated in the southern part of the peninsula. It is located on the fissure zone of the Mid-Atlantic Ridge. The lake has no visible water coming in or going out as most of its water comes and leaves underground. The lake can be reached via a track, and there are two areas with high temperature that can be found not far from it: Seltún/Krýsuvík and another to the east. A 2012 survey demonstrated one definite geothermal vent under the lake and suggested two others in a linear line trending as for most of the faults in the

Langisjór () is a lake in the western part of Vatnajökull National Park, Iceland. It is around 20 km in length and up to 2 km wide, with a total surface area of about and a depth of 75m at its deepest point.

Hvítárvatn (, "white river lake"; also known as Hvítárlón , "white river lagoon") is a lake in the Highlands of Iceland and the source of the glacial river Hvítá, Árnessýsla. It is located northeast of Gullfoss waterfall. Its surface is about and its greatest depth is . It lies at an elevation of .

lake in Southern Region, Iceland

left|thumb|Grænavatn ("green lake"). left|thumb|Hnausapollur . Veiðivötn (, "fishing lakes") is a volcanic lake region in the Highlands of central Iceland, where approximately 50 lakes fill two rows of fissure vents.