English abbreviations from nias to nick
- NIAS (Northern Ireland Archery Society)
- NIAW (National Immunization Awareness Week)
- NIB (National Investment Bank)
- NIBK (Nordåsgrenda InneBandyklubb)
- NIBP (Non-invasive blood pressure monitor)
- NIBRS (National Incident-Based Reporting System)
- NIC (Neonatal intensive care)
- NicA (Nicotine Anonymous)
- NICAD (NIckel CADmium (battery))
- NI-CAD (Nickel Cadmium)
- NICAM (Near Instantaneous Companded Audio Multiplex)
- NICAP (National Investigations Committee on Aerial Phenomena)
- NICC (Newspaper Industry Communications Center)
- NICCP (National Interdiction Command and Control Plan)
- NICE (National Institute for Health and Clinical Excellence)
- NICEF (National Information Centre of Earthquake Engineering)
- NICEIC (National Inspection Council for Electrical Installation Contracting)
- NICHD (National Institute of Child Health and Human Development [4])
- NICHQ (National Initiative for Children's Healthcare Quality)
- NICI (National Intellectual Capital Index)
- NICK (Nickelodeon)