NLN
- Kneeland Airport
- LGBTQ slang
- Mexicanero language
- National Lampoon Inc
- National League for Nursing
- National League of the North
- National Learning Network
- National Legitimist Party
- National Library of Nigeria
- Natronolimnobius
- Navis Logistics Network
- Nelenite
- NeuLion
- New Lane railway station
- New Life Network
- New London Northern Railroad
- Next Left Notes
- North Lincolnshire