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| Lake Name (short) | Lake Name (in full) | Country |
|---|---|---|
| Yacyreta P.P. | Yacyreta P.P. Reservoir | Argentina / Paraguay |
| Yamdrok | Lake Yamdrok | China |
| Yathkyed | Yathkyed Lake | Canada |
| Ypacarai | Lake Ypacarai | Paraguay |
| Yuqiao | Yuqiao Reservoir | China |