| N&I | Nissan and Infiniti 
| Others |
| NI | Introverted iNtuition
| Others |
| NI | NAE, Inc.
| Others |
| NI | Name Identity
| Others |
| NI | Named Insured
| Others |
| NI | Narcotrend Index
| Others |
| NI | National Identification (Number)
| Others |
| NI | National Income
| Others |
| NI | National Indicator
| Others |
| NI | National Instructor
| Others |
| NI | National Instruments
| Others |
| NI | National Insurance
| Others |
| NI | Native Image
| Others |
| NI | Native Indian
| Others |
| NI | Native Infantry
| Others |
| NI | Natural Immunity
| Others |
| NI | Natural Inform
| Others |
| NI | Natural Intelligence
| Others |
| NI | Natural Interaction
| Others |
| NI | Naval Interdiction
| Others |
| NI | Near Inclusion
| Others |
| NI | Nebula Interface
| Others |
| NI | necroinflammatory
| Others |
| NI | Necrosis Index
| Others |
| NI | Needs Improvement
| Others |
| NI | Negative Infimum
| Others |
| NI | Negative Ion
| Others |
| NI | Nematic Isotropic
| Others |
| NI | neointima
| Others |
| NI | Neostriatum Intermedium
| Others |
| NI | Nerdy Individual
| Others |
| NI | NERS (Nuclear Engineering and Radiological Sciences) Internal
| Others |
| NI | Net Import
| Others |
| NI | Net Income
| Others |
| NI | Neural Invasion
| Others |
| NI | Neuraminidase Inhibition
| Others |
| NI | Neurogenic Inflammation
| Others |
| NI | neuroimaging
| Others |
| NI | neurointermediate
| Others |
| NI | Neurologic Impairment
| Others |
| NI | Neurologic Improvement
| Others |
| NI | Neurologically Impaired
| Others |
| NI | Neurologically Intact
| Others |
| NI | Neutralization Index
| Others |
| NI | New Imperium
| Others |
| NI | New Information
| Others |
| NI | New Instructions
| Others |
| NI | New Issue
| Others |
| NI | Next Intel
| Others |
| NI | Next Iteration
| Others |
| NI | Ng In
| Others |
| NI | NI is
| Others |
| NI | Nickel
| Element |
| NI | nicotine
| Others |
| NI | Niel I
| Others |
| NI | nifedipine
| Others |
| NI | nimesulide
| Others |
| NI | Nitrogen Index
| Others |
| NI | Nitrogen Injection
| Others |
| NI | Nitrogen Intake
| Others |
| NI | No Idea
| Others |
| NI | No Index
| Others |
| NI | No Information
| Others |
| NI | No Inhibition
| Others |
| NI | No Interface
| Others |
| NI | No Interleaving
| Others |
| NI | No Issue
| Others |
| NI | Node Interface
| Others |
| NI | Noise Index
| Others |
| NI | Non Indexed
| Others |
| NI | Non Induced
| Others |
| NI | Non Infected
| Others |
| NI | Non Inferiority
| Others |
| NI | Non Inscrits
| Others |
| NI | Non-Impact
| Others |
| NI | Non-Indian
| Others |
| NI | Non-Inductive
| Others |
| NI | Non-Informative
| Others |
| NI | Non-Insulated
| Others |
| NI | Non-Interlaced
| Others |
| NI | Non-Invasive
| Others |
| NI | Non-Inversed
| Others |
| NI | nonischemic
| Others |
| NI | Nord Invasion
| Others |
| NI | Normal Incidence
| Others |
| NI | North Island
| Others |
| NI | Nosocomial Infection
| Others |
| NI | Not Identical
| Others |
| NI | Not Identified
| Others |
| NI | Not Illustrated
| Others |
| NI | Not Important
| Others |
| NI | Not In
| Others |
| NI | Not Included
| Others |
| NI | Not Indicated
| Others |
| NI | Not Initialized
| Others |
| NI | Not Interested
| Others |
| NI | Not Interesting
| Others |
| NI | Not Isolated
| Others |
| NI | Not-Inside
| Others |
| NI | Noted Item
| Others |
| NI | Notoriety Index
| Others |
| NI | Novus Imperium
| Others |
| NI | Nuclear Inclusion
| Others |
| NI | Nuclear Index
| Others |
| NI | Nucleus Intercalatus
| Others |
| NI | Nucleus Interpositus
| Others |
| NI | Number of Inhomogeneities
| Others |
| NI | Number of Intervals
| Others |
| NI | Nursing Informatics
| Others |
| NI | Nutritional Index
| Others |
| NI | Nutritional Info
| Others |