| Acronym | Definition | 
|---|
| NTL➣Nevertheless | 
| NTL➣No Time Limit (permit; UK) | 
| NTL➣Non-Trucking Liability (insurance) | 
| NTL➣Northwest Transmission Line (Canadian project) | 
| NTL➣National Transportation Library | 
| NTL➣National Training Laboratories | 
| NTL➣Nothing to Lose | 
| NTL➣None the Less | 
| NTL➣Naigai Trans Lines (Indonesia) | 
| NTL➣Normal Tidal Limit | 
| NTL➣Norsk Tjenestemannslag | 
| NTL➣National Training Laboratory | 
| NTL➣Never Too Late | 
| NTL➣Newton's Third Law (physics) | 
| NTL➣Norske Tropefuglforeningers Landsforbund (Norwegian bird association) | 
| NTL➣Number Theory Library | 
| NTL➣Nippon Techno Lab, Inc. (Japan) | 
| NTL➣National Taichung Library (est. 1923; Taiwan) | 
| NTL➣National Transcommunications Limited (UK television & media) | 
| NTL➣Natural Law Party (also seen as NLP) | 
| NTL➣National Testing Laboratory (Red Cross) | 
| NTL➣No Time Lost | 
| NTL➣National Travelers Life Company (now EMC National Life Company) | 
| NTL➣Notice to Lessees and Operators | 
| NTL➣NonStop Technical Library (Hewlett-Packard) | 
| NTL➣Newcastle, New South Wales, Australia - Williamtown (Airport Code) | 
| NTL➣Need the Loo | 
| NTL➣National Technology Laboratory | 
| NTL➣National Temperance League | 
| NTL➣Nizky Tlak (Czech: Low Pressure) | 
| NTL➣Nuclear Technology Laboratory | 
| NTL➣Notified Testing Laboratory | 
| NTL➣Nonstandard Template Library (C++ programming) | 
| NTL➣National City Lines, Inc. (NYSE symbol) | 
| NTL➣Non-Uniform Transmission Line | 
| NTL➣Neon Test Light | 
| NTL➣Nuclear Thermionics Laboratory | 
| NTL➣Non Technological Liability |