Battle of Lạng Sơn may refer to:
- Lạng Sơn Campaign in 1885, a French offensive during the Sino-French War
- Battle of Lạng Sơn in September 1940, fought by French forces against the Imperial Japanese Army during the Japanese invasion of French Indochina
- Battle of Lạng Sơn (1979), during the Sino-Vietnamese War
This disambiguation page lists articles associated with the title Battle of Lạng Sơn.
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