| NRRL | Norsk Radio Relae Liga (Norwegian: Norwegian Radio Relay League; Norway) | 挪威无线电中继联盟（挪威语：挪威无线电中继联赛；挪威） |
| NRRL | Noise Reduction Rating for the Lower-rated protector | 低额定值保护器的降噪额定值 |
| NRRL | New River Regional Landfill | 新河区域填埋场 |
| NRRL | NeuroRehabilitation Research Laboratory | 神经康复研究实验室 |
| NRRL | Norwegian Radio Relay League | 挪威无线电接力联盟 |