Long River may refer to:
- The Yangtze River, from the literal translation of its usual Chinese name Changjiang ()
- Any of several rivers named Long (, meaning "Dragon River")
- Long Island River (Minnesota), a river of Minnesota, US
- Long River (Guangxi), a river system in Guangxi Province, China
- Long River, Prince Edward Island, a community in Canada
See also
- List of rivers by length
- Long River Review, an American literary magazine