Khalkhyn Gol

Geobox|River
name = Khalkhyn Gol
native_name = _mn. Халхын гол
other_name = Khalkha River
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etymology =
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country = Mongolia
country1 = People's Republic of China
state_type = Mongolian Aimag
state = Dornod
state1 =
region_type = Chinese Region
region = Inner Mongolia
district_type = Chinese Prefecture
district = Hulunbuir
municipality_type = Major city
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parent =
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source_country = Mongolia
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mouth = Lake Buir
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mouth_country = People's Republic of China
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length = 232
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The Khalkhyn gol ( _mn. Халхын гол, "Khalkha river"; Chinese: 哈拉哈河) is a river in eastern Mongolia and northern China. The length of the river is 232 km.

The Khalkha river is famous for the Battle of Khalkhyn Gol, where Soviet and Mongolian forces defeated the Japanese Kwantung Army in August 1939.