English abbreviations from nhrpp to niar
- NHRPP (Navy Human Research Protections Program)
- NHRR (NH Rough Riders)
- NHRTC (National HUMINT (HUMan INTelligence) Requirements Tasking Center)
- NHS (National Health Service)
- NHSA (National Head Start Association)
- NHSCC (National High School Cheerleading Championship)
- NHSLS (National Health and Social Life Study)
- NHT (RAF Northolt)
- NHTSA (National Highway Traffic Safety Administration)
- NHU (National Hispanic University)
- NHUBW (National Hook- Up of Black Women)
- NHX (NOLF Barin (FAA: NBJ))
- NHYF (New Horizons Youth Foundation)
- NHZ (NAS Brunswick)
- Ni (Nickel)
- Ni/Cd (Nickel Cadmium)
- NIA (Nimba Airport)
- NIAAA (U.S. National Institute on Alcohol Abuse and Alcoholism)
- NIAC (National Iranian American Council)
- NIAG (NATO Industrial Advisory Group)
- NIAH (National Institute of Animal Health)
- NIAI (National Insurance Advocacy Initiative)
- NIAID (National Institute of Allergies and Infectious Disease)
- NIALL (Non Intelligent Applied Language Learner)
- NIAM (Natural language Information Analysis)
- NIAMD (National Institute of Arthritis and Musculoskeletal Diseases)
- NIAR (National Institute for Aviation Research)