The list of lakes in Japan ranked by surface area.
| Rank |
Name
|
Region
|
Prefecture¹
|
Municipalities |
Water |
Area
(km²) |
Max Depth
(m) |
Altitude
(m) |
Volume
(km³) |
| 1 | Biwa | Kansai | Shiga | Ōtsu, Kusatsu, Higashi-Ōmi, Hikone
Nagahama, Moriyama, Ōmi-Hachiman
Takashima, Yasu, Maibara | Fresh | 670.3 | 103.8 | 85 | 27.5 |
| 2 | Kasumigaura | Kantō | Ibaraki | Tsuchiura, Ishioka, Omitama, Inashiki
Ami, Kasumigaura, Namegata, Itako, Miho | Fresh | 167.6 | 7.10 | 0 | 0.85 |
| 3 | Saroma | Hokkaidō | Abashiri | Kitami, Saroma, Yūbetsu | Brackish | 151.9 | 19.6 | 0 | 1.3 |
| 4 | Inawashiro | Tōhoku | Fukushima | Kōriyama, Aizu-Wakamatsu, Inawashiro | Fresh | 103.3 | 94.6 | 514 | 5.40 |
| 5 | Nakaumi | San'in | Shimane
Tottori | Matsue, Yonago, Yasugi
Sakaiminato, Higashi-Izumo | Brackish | 86.2 | 17.1 | 0 | 0.47 |
| 6 | Kussharo | Hokkaidō | Kushiro | Teshikaga | Fresh | 79.3 | 117.5 | 121 | 2.25 |
| 7 | Shinji | San'in | Shimane | Matsue, Izumo, Hikawa | Brackish | 79.1 | 6.0 | 0 | 0.34 |
| 8 | Shikotsu | Hokkaidō | Ishikari | Chitose | Fresh | 78.4 | 360.1 | 247 | 20.9 |
| 9 | Tōya | Hokkaidō | Iburi | Lake Tōya, Sōbetsu | Fresh | 70.7 | 179.9 | 84 | 8.19 |
| 10 | Hamana | Tōkai | Shizuoka | Hamamatsu, Kosai, Arai | Brackish | 65.0 | 13.1 | 0 | 0.35 |
| 11 | Ogawara | Tōhoku | Aomori | Misawa, Tōhoku, Rokkasho | Brackish | 62.2 | 24.4 | 0 | 0.714 |
| 12 | Towada | Tōhoku | Aomori
Akita | Towada, Kosaka | Fresh | 61.0 | 326.8 | 400 | 4.19 |
| 13 | Notoro | Hokkaidō | Abashiri | Abashiri | Brackish | 58.4 | 23.1 | 0 | 0.5 |
| 14 | Fūren | Hokkaidō | Nemuro | Nemuro, Betsukai | Brackish | 57.5 | 13.0 | 0 | 0.0564 |
| 15 | Kitaura | Kantō | Ibaraki | Kashima, Hokota, Namegata, Itako | Fresh | 35.2 | 7.0 | 0 | 0.18 |
| 16 | Abashiri | Hokkaidō | Abashiri | Abashiri, Ōzora | Brackish | 32.3 | 16.1 | 0 | 0.2 |
| 17 | Akkeshi | Hokkaidō | Kushiro | Akkeshi, Hokkaidō | Fresh | 32.3 | 11.0 | 0 | |
| 18 | Hachirō | Tōhoku | Akita | Katagami, Oga, Gojōme, Ikawa, Ōgata | Fresh | 27.7 | 12.0 | 0 | |
| 19 | Tazawa | Tōhoku | Akita | Senboku | Fresh | 25.8 | 423.4 | 249 | 7.2 |
| 20 | Mashū | Hokkaidō | Kushiro | Teshikaga | Fresh | 19.2 | 211.4 | 351 | |
| 21 | Jūsan | Tōhoku | Aomori | Goshogawara, Tsugaru, Nakadomari | Brackish | 18.1 | 1.5 | 0 | |
| 22 | Kutcharo | Hokkaidō | Sōya | Hamatonbetsu | Fresh | 13.3 | 3.3 | 0 | 0.014 |
| 23 | Suwa | Chūbu | Nagano | Okaya, Suwa, Shimo-Suwa | Fresh | 13.3 | 7.6 | 759 | 0.06135 |
| 24 | Akan | Hokkaidō | Kushiro | Kushiro | Fresh | 13.0 | 44.8 | 420 | 0.249 |
| 25 | Chūzenji | Kantō | Tochigi | Nikkō | Fresh | 11.8 | 163.0 | 1269 | 1.1 |
| 26 | Inba | Kantō | Chiba | Yachiyo, Sakura, Narita, Inzai, Shisui, Sakae | Fresh | 11.55 | 2.5 | 2.5 | 0.0277 |
| 27 | Ikeda | Kyūshū | Kagoshima | Ibusuki | Fresh | 10.9 | 233.0 | 66 | 1.38 |
| 28 | Hibara | Tōhoku | Fukushima | Kitashiobara | Fresh | 10.7 | 30.5 | 822 | 0.13 |
| 29 | Kuttara | Hokkaidō | Iburi | Shiraoi | Fresh | 4.68 | 148 | 258 | 0.491 |
1) For lakes in the Hokkaidō region, Subprefecture is listed
