LNU may refer to:
Universities Leyte Normal University, Tacloban City, Philippines Liaoning Normal University, a teacher training university in China Lingnan Normal University, Zhanjiang City, Guangdong Province, China Linnaeus University, Växjö and Kalmar, Sweden University of Luhansk, Ukraine University of Lviv, Ukraine
Other Fnu Lnu (Last Name Unknown), a placeholder name The (), a member of the World Assembly of Youth League of Nations Union, a British organisation advocating peace and disarmament Lincolnshire Naturalists' Union, a British natural history society formed in 1893. Longuda language (ISO 639:lnu), a Niger–Congo language of Nigeria Mi'kmaq people or Lnu, a First Nations People of North America Robert Atty Bessing Airport (IATA: LNU), Malinau, North Kalimantan, Indonesia Sonoma-Lake-Napa Unit, an operational unit of the California Department of Forestry and Fire Protection LNU Lightning Complex fires, a group of wildfires in California