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 |
Aizuwakamatsu, Inawashiro, Kōriyama |
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 |
Tōyako, 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 [ja] |
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 |
Ashi |
Kantō |
Kanagawa |
Hakone |
Fresh |
7.03 |
43.5 |
723 |
|
| 30 |
Kuttara |
Hokkaidō |
Iburi |
Shiraoi |
Fresh |
4.68 |
148 |
258 |
0.491
|
1) For lakes in the Hokkaidō region, Subprefecture is listed