| NAG | N Acetyl Glucosamine 
| Others |
| NAG | N-acetylglucosamine
| Others |
| NAG | Nagpur, India
| Others |
| NAG | Nanjing Automobile Group
| Others |
| NAG | Nantyglo Action Group
| Others |
| NAG | Narrow Angle Glaucoma
| Others |
| NAG | Narrow-Angle Glaucoma
| Others |
| NAG | Nathan Adelson Hospice
| Others |
| NAG | National Administrative Guidances
| Others |
| NAG | National Advisory Groups
| Others |
| NAG | National Age Group
| Others |
| NAG | National Air Racing Group
| Others |
| NAG | National Anti-Hacking Group
| Others |
| NAG | National Archives of Ghana
| Others |
| NAG | National Association of Goldsmiths
| Others |
| NAG | Nationale Automobil Gesellschaft
| Others |
| NAG | Nationwide Automotive Group
| Others |
| NAG | Naughty Albo Guy
| Others |
| NAG | Nearly Anything Goes
| Others |
| NAG | Nebraska Association for the Gifted
| Others |
| NAG | Neckar Automobilwerke Ag
| Others |
| NAG | Nederlands Akoestisch Genootschap
| Others |
| NAG | Neighborhood Advisory Group
| Others |
| NAG | Neighbourhood Advocacy Group
| Others |
| NAG | Neopian Adventure Generator
| Others |
| NAG | Network Action Groups
| Others |
| NAG | Network Activities Groups
| Others |
| NAG | Network Administrator Guide
| Others |
| NAG | Network Administrator's Group
| Others |
| NAG | Network Administrators Group
| Others |
| NAG | Network Administrators Guide
| Others |
| NAG | Network Architecture Group
| Others |
| NAG | Network Auralization for Gnutella
| Others |
| NAG | Neue Automobil Gesellschaft
| Others |
| NAG | Neues Automatik Getriebe
| Others |
| NAG | Neutral Alpha-Glucosidase
| Others |
| NAG | Never Alone Gang
| Others |
| NAG | New Age Gaming
| Others |
| NAG | New Age Guys
| Others |
| NAG | New Art Gallery
| Others |
| NAG | Nicheling Alliance Group
| Others |
| NAG | Nitric Acid Grade
| Others |
| NAG | No A**hole Games
| Others |
| NAG | No Attitude Guys
| Others |
| NAG | Nodo Assetto Guida
| Others |
| NAG | Nominations and Awards Group (of BVA)
| Others |
| NAG | Non Aggression Guideline
| Others |
| NAG | Non Albino Golden
| Others |
| NAG | Nonviolent Action Group
| Others |
| NAG | North American Grappling
| Others |
| NAG | North American Group
| Others |
| NAG | Notorious Action Generator
| Others |
| NAG | Novell Access Gateway
| Others |
| NAG | Nuffie Arsehole Guys
| Others |
| NAG | Numerical Algorithm Group
| Others |
| NAG | Numerical Algorithms Group
| Others |
| NAG | Nutrition Advisory Group
| Others |