| Lake Khasan | |
| Location: | Khasansky District, Primorsky Krai |
| Coords: | 42.4486°N 130.6081°W |
| Pushpin Map: | Russia Primorsky Krai |
| Outflow: | Tanbogatyi River |
| Basin Countries: | Russia |
| Area: | 2.23km2 |
Lake Khasan or Lake Hassan (Russian: озеро Хасан;) is a small lake in Khasansky District, Primorsky Krai of Russia, located southeast of Posyet Bay, near the border with North Korea and China, 130km (80miles) southwest of Vladivostok. It has a surface area of . The Tanbogatyi River flows from the lake. The lake, described as "the tight corner where the territories of Korea, Manchuria, and Russia meet",[1] was the site of the Battle of Lake Khasan in summer 1938. The lake is near Fangchuan, China.
