NLS
- Labour Students
- NLS (computer system)
- Nailsea and Backwell railway station
- Nanosatellite Launch System
- National Language Services
- National Language Support
- National Launch System
- National Law School of India University
- National League System
- National Library Service for the Blind and Print Disabled
- National Library of Scotland
- National Life Stories
- National Lifeguard Service
- National Longitudinal Surveys
- Nautilus, Inc.
- New Face of Serbia
- Niles (Amtrak station)
- Non-Linear Systems
- Non-linear least squares
- Nonlinear Schrödinger equation
- North Leamington School
- Nottingham Law School
- Nuclear localization signal
- Nürburgring
- Nürburgring Langstrecken-Serie