KLU (disambiguation)

KLU may refer to:
 * Klagenfurt Airport, the IATA code KLU
 * Koninklijke Luchtmacht (KLu), the military aviation branch of the Netherlands Armed Forces
 * klu, the ISO 639-3 code for Klao language
 * Kühne Logistics University, a state-recognized business school and university based in Hamburg, Germany