List of lakes of Iceland

Iceland has over 20 lakes larger than 10 km² (4 sq mi), and at least 40 others varying between 2.5 and 10 km² (1 to 4 sq mi) in size. This list also includes a few smaller lakes and ponds that are considered notable (for example Tjörnin in Reykjavik). The figures for many of the smaller lakes are unreliable. Also, some larger lakes vary considerably in size between years or seasons or, for the reservoirs, according to the needs of power plants. Some power plant reservoirs may not be present despite being larger than listed lakes.

Larger lakes (>10 km²)

Smaller lakes (<10 km²)

Litlisjór, 9.2 km², 17 m
Kleifarvatn, 9.0 km², >90 m (sensitive to climatic and geological change and was getting smaller - started recovering again in 2004)
Breiðárlón, 8 km²
Reyðarvatn, 8.3 km²
Hítarvatn, 7.6 km², 24 m
Miklavatn (Fljót), 7.4 km²
Miklavatn (Borgarsveit), 6.6 km², 23 m
Árneslón, 6.5 km², 116 m [6]
Sigríðarstaðavatn, 6.2 km²
Laxárvatn, 6.0 km²
Íshólsvatn, 5.2 km², 39 m
Úlfljótsvatn, 60 m
Langavatn, 5.1 km², 36 m
Ánavatn, 4.9 km², 24 m
Hagalón, 4.6 km², 116 m [7]
Hlíðarvatn, 4.4 km², 21 m
Arnarvatn hið stóra, 4.3 km²
Þríhyrningsvatn, 4.3 km², 33 m
Hvalvatn, 4.1 km², 160–180 m
Másvatn, 4.0 km², 17 m
Fjallsárlón, 4.0 km²
Skjálftavatn, 4.0 km², 2.5 m
Stífluvatn, 3.9km², 23 m
Fljótavatn, 3.9 km²
Úlfsvatn, 3.9 km²
Kálfborgarárvatn, 3.5 km²
Langavatn, 3.5 km²
Hraunhafnarvatn, 3.4 km², 3 m
Haukadalsvatn, 3.3 km², 41 m
Grænavatn, 3.3 km², 14 m
Eskihlíðarvatn, 3.3 km², 5 m
Ljósavatn, 3.2 km², 35 m
Sandvatn, 3.0 km², 4 m
Ölvesvatn, 2.8 km²
Kýlingavötn (Kýlingar), 2.5-3.0 km² (actually two adjoining lakes that nearly form a single body of water)
Sandvatn, 2.6 km²
Flóðið, 2.6 km²
Kvíslavatn nyrðra, 2.6 km²
Hraunsfjarðarvatn, 2.5 km², 80 m
Stóra-Viðarvatn, 2.5 km², 20 m
Oddastaðavatn, 2.5 km², 18 m
Frostastaðavatn, 2.3 km², >6 m
Laugarvatn, 2.1 km²
Meðalfellsvatn, 2.0 km², 19 m
Elliðavatn, 1.8 km², 7 m
Hreðavatn, 1.1 km², 20 m
Skyggnisvatn
Hvítavatn
Tjörnin
Rauðavatn
Reynisvatn