English abbreviations from nttp to nuac
- NTTP (National Trails Training Partnership)
- NTU (Nephelometric Turbidity Unit)
- NTUA (National Technical University Of Athens)
- NTUF (National Taxpayer Union Foundation)
- NTUG (Nordic Tex Users Group)
- NTUI (National Taxpayers United Of Illinois)
- NTUL (National Taiwan University Library)
- NTUO (National Taxpayers Union Of Ohio)
- NTUT (National Taipei University Of Technology)
- NTUU (National Technical University Of Ukraine)
- NTV (Non-Tactical Vehicle)
- NTVDM (New Technology Virtual DOS Machine (Microsoft Windows NT))
- NTVS (Non-Tactical Vehicle System)
- NTW (Nourish The World)
- NTWC (National Trails and Waters Coalition)
- NTX (Ranai Airport)
- NTY ((Internet Abbreviations:) Not Tested Yet; (Alternatively) No Thank You)
- NTZ (Iraq-Saudi Arabia Neutral Zone (ISO 3166 trigram; obsolete 1993))
- NU (Nicaragua (FIPS 10-4 country code))
- NUA (No Unlimited Ammo)
- NUAA (Nanjing University of Aeronautics and Astronautics)
- NUAC (Non-Uniform Attenuation Correction)