| NRL | Namespace Routing Language 
| Others |
| NRL | National Radiation Laboratory
| Others |
| NRL | National Radioactive Llamas
| Others |
| NRL | National Railroad Leasing
| Others |
| NRL | National Rainforest Llamas
| Others |
| NRL | National Rally License
| Others |
| NRL | National Ranking List
| Others |
| NRL | National Rap League
| Others |
| NRL | National Reference Laboratories
| Others |
| NRL | National Research Laboratory
| Others |
| NRL | National Rifle League
| Others |
| NRL | National Robotics League
| Others |
| NRL | National Rowing League
| Others |
| NRL | National Rugby League
| Others |
| NRL | National Running League
| Others |
| NRL | National Rupert League
| Others |
| NRL | Natural Resources Library
| Others |
| NRL | Natural Rubber Latex
| Others |
| NRL | Natural Rule Language
| Others |
| NRL | Naval Research Laboratories
| Others |
| NRL | Naval Research Laboratory
| Others |
| NRL | Naval Research Logistics
| Others |
| NRL | Navigation Reverb Lockout
| Others |
| NRL | Network Research Lab
| Others |
| NRL | Never Running Longways
| Others |
| NRL | No Real Locals
| Others |
| NRL | Nominal Response Library
| Others |
| NRL | Normalized Radial Length
| Others |
| NRL | North Ronaldsay, England, UK
| Others |
| NRL | Not Real Long
| Others |
| NRL | Not Really Likeable
| Others |
| NRL | Not Really Long
| Others |
| NRL | Not Release
| Others |
| NRL | NRL Rugby League
| Others |
| NRL | Nsw Rugby League
| Others |
| NRL | Nuclear Referral List
| Others |
| NRL | Nuclear Weapons (NUWEP) Reconnaissance List
| Others |
| NRL | Nucleosome Repeat Length
| Others |
| NRL | Nucleus Reticularis Lateralis
| Others |
| NRL | Numaligarh Refinery Limited
| Others |
| NRL | Number of Range Locations
| Others |
| NRL | Rugby league
| Others |