Cửu Long may refer to:
Mekong River or Cửu Long River, a major river in Southeast Asia Mekong Delta or Cửu Long Delta, region in southwestern Vietnam where the Mekong River empties into the sea Cửu Long Province, a former Vietnamese province in the Mekong Delta 4th Corps (Vietnam People's Army) or Cửu Long Corps, a regular army corps of the People's Army of Vietnam
See also Operation Cuu Long 44-02, a 1971 operation by South Vietnamese and Cambodian forces to reopen Route 4 in Cambodia Jiulong (disambiguation), Mandarin equivalent Kowloon (disambiguation), Cantonese equivalent 九龍 (disambiguation), logogram equivalent