NLU
NLU may refer to:
- Felipe Ángeles International Airport, in Zumpango, State of Mexico, Mexico (IATA code NLU)
- Insel Air Aruba, a former airline based in Aruba (ICAO code NLU)
- Natural-language understanding
- National Labor Union
- National Law University
- National-Louis University
- University of Louisiana at Monroe (Northeast Louisiana University)