| Acronym | Definition |
|---|
| RSR | Radio Suisse Romande (Radio of the French-speaking Switzerland) |
| RSR | Retail Systems Research (Miami, FL) |
| RSR | Rental Sales Representative (various companies) |
| RSR | Royal Sussex Regiment |
| RSR | Rally Sport Replicas |
| RSR | Rally Sport Racing |
| RSR | Redundant Source Routing |
| RSR | Renn Sport Racer |
| RSR | Ribble Steam Railway (UK) |
| RSR | Retail Sales Representative |
| RSR | Rail Safety Regulator (various locations) |
| RSR | Regular Supervisory Report (finance) |
| RSR | Really Simple Reporting (Akvo) |
| RSR | Recherches de Science Religieuse (French: Religious Science Research) |
| RSR | Rising Sun Research |
| RSR | Relative Spectral Response (optical engineering) |
| RSR | Regular Sinus Rhythm |
| RSR | Required Supply Rate |
| RSR | en-Route Surveillance Radar (US FAA) |
| RSR | Realschulrektor (Germany) |
| RSR | Remote Site Recovery |
| RSR | Restricted Stock Right |
| RSR | Republica Socialista România (Socialist Republic of Romania) |
| RSR | Remote Service Request |
| RSR | Riviera Stunt Riders (France) |
| RSR | Rock and Sock and Robot (Internet video series) |
| RSR | Remote Site Replication (software) |
| RSR | Rock Solid Results |
| RSR | Rochester and Southern Railroad |
| RSR | Reduction with Selective Redundancy (algorithm) |
| RSR | Reactor Safety Research |
| RSR | Royal Sailors' Rests (Christian charity; Portsmith, England, UK) |
| RSR | Rasmussen Starr Ruddy (Canada) |
| RSR | Repair Survival Rate |
| RSR | Risques Spéciaux |
| RSR | Radio Salve Regina (French radio station) |
| RSR | Ribotoxic Stress Response |
| RSR | Resource Status Report |
| RSR | Runtime Status Register |
| RSR | Rumunská Socialistická Republika (Socialist Republic of Romania) |
| RSR | Resources Status Report |
| RSR | Ready Service Ring |
| RSR | Refracted Surface - Reflected Ray Path |
| RSR | Reduced Surface Resistance |
| RSR | Research Support Request |
| RSR | Requirements Strategy Review (US Air Force) |
| RSR | Raccoon Strain Rabies |
| RSR | Recall, Screen and Repair/Return |
| RSR | Refracted Surface Reflection |
| RSR | Runescape Rush |
| RSR | Row Seeded Rice |
| RSR | Routeset Test-Restricted (SS7) |
| RSR | Reservation Region |
| RSR | Resurvey Settlement Register (field survey for land records) |
| RSR | Resident Safety Representative (Hofstra University, Long Island, NY) |
| RSR | Residual Surface Resistance |
| RSR | Run Sarah Run (Sarah Palin; politician) |
| RSR | Resettlement Register |