NAV or Nav may refer to:
Government agencies
- Norwegian Labour and Welfare Administration, Norwegian public welfare agency, the Norwegian abbreviation and common name is NAV.
Medicine and biology
- Nav, voltage-gated sodium channels
- nerve-artery-vein (anatomy), when all these follow a common pathway
- Nomina Anatomica Veterinaria, veterinary textbook
Computers
- Network allocation vector, a method to avoid collisions in a shared transmission medium
- Norton AntiVirus, antivirus software developed by Symantec Corporation
- Microsoft Dynamics NAV, an enterprise resource planning software product from Microsoft
Finance
- Net asset value, a fund's price per share
Music
- Nav (rapper) (stylized as NAV), a Canadian rapper, singer, and record producer
- Nav (mixtape), his 2017 debut commercial mixtape
Places
- Nav, Afghanistan
- Nav, Iran (disambiguation)
- Nav (Slavic folklore), or Nawia, an underworld in Slavonic mythology
Transportation
- Nevşehir Kapadokya Airport, Nevşehir, Turkey, IATA airport code
- Navigation
Business
- Net asset value, a term in finance
Other uses
- Navajo language's ISO 639 code
- New Arabic Version, a translation of the Bible into Arabic
- Jav, Prav and Nav, three worlds in the Book of Veles