| Acronym | Definition |
|---|
| SNR | Signal-to-Noise Ratio |
| SNR | Seiner (Dutch) |
| SNR | School of Natural Resources |
| SNR | Samburu National Reserve (Kenya) |
| SNR | Serial Number |
| SNR | Sequence Number Reset |
| SNR | Signal to Noise Ratio |
| SNR | Server Not Responding |
| SNR | Single Number Reach |
| SNR | Sub National Review |
| SNR | Sporting News Radio |
| SNR | Shell Nederland Raffinaderij (Dutch: Shell Netherlands Refinery) |
| SNR | Single Number Rating (EU noise diffusion measurement) |
| SNR | Society of Nautical Research (est. 1908) |
| SNR | Safety Net Review (Australia) |
| SNR | Senior National Representative |
| SNR | Senior Gamers (gaming community) |
| SNR | Super Nova Remnant |
| SNR | Shady Ninja Racing (forum) |
| SNR | Saved Number Redial |
| SNR | Startup Notification Report |
| SNR | Sporting Nazairien Rugby (French rugby club) |
| SNR | Supplier Nonconformance Report |
| SNR | Société Nouvelle de Rectification (French industrial motor repair company) |
| SNR | Syndicat National des Radiesthésistes (French: National Union of Dowsers) |
| SNR | Subject to Non-Renewal |
| SNR | Skilled Nursing and Rehabilitation |
| SNR | Stochastic Noise Reaction (gradient method for minimization of arbitrary functions) |
| SNR | Signature Not Required |
| SNR | Senior NAVOCEANO Representative (US Navy) |
| SNR | S-Type Noise Reduction (Dolby cassette technology) |
| SNR | Sunflour Railroad Incorporated |
| SNR | Sub-Net Relay |