| Acronym | Definition |
|---|
| RIN | Research Information Network (UK) |
| RIN | Renewable Identification Number (US EPA) |
| RIN | Resource Identification Number |
| RIN | Regional Information Network |
| RIN | Radio Italia Network (Italian: Radio Network Italy; broadcaster) |
| RIN | Regulatory Information Notice (Australian energy markets) |
| RIN | Relative Intensity Noise |
| RIN | RNA Integrity Number (software algorithm) |
| RIN | Royal Institute of Navigation (UK) |
| RIN | Reference Identification Number (various locations) |
| RIN | Russian Information Network (Russia) |
| RIN | Record Identification Number |
| RIN | Retirement Index Number (various companies) |
| RIN | Royal Indian Navy (WWII) |
| RIN | Règlement Intérieur National de la Profession d'Avocat (French: National Internal Regulations of the Legal Profession) |
| RIN | Regulatory Identifier Number |
| RIN | Renewal Identification Number (vehicle registration) |
| RIN | Registrant Identification Number (Canada) |
| RIN | Rensselaer Identification Number (student/employee tracking) |
| RIN | Report Identification Number |
| RIN | Rassemblement pour l'Independence Nationale |
| RIN | Routing Instruction Note |
| RIN | Radiation Information Network (Idaho State University website) |
| RIN | Retrofit Incorporation Notice |
| RIN | Return Incident Number |