| Acronym | Definition |
|---|
| RSL➣Real Salt Lake (soccer club; Utah) |
| RSL➣Registered Social Landlord (UK) |
| RSL➣Robert Sean Leonard (actor) |
| RSL➣Returned and Services League (Australia) |
| RSL➣Recurring Slope Lineae (astronomy) |
| RSL➣Rugby Super League |
| RSL➣Russian State Library (Moscow, Russia) |
| RSL➣Read and Set Lock |
| RSL➣Recommended Spares List |
| RSL➣Request and Status Link |
| RSL➣Roots Surname List |
| RSL➣Resource Specification Language |
| RSL➣Ringer Sound Level |
| RSL➣Registry Size Limit |
| RSL➣Relay Stop List |
| RSL➣Resource Management Layer |
| RSL➣Raising the Standard of Living |
| RSL➣Religious and Spiritual Life (various locations) |
| RSL➣Returned & Services League of Australia (formerly Returned Services League of Australia; est. 1916) |
| RSL➣registry size limit (Microsoft Windows) |
| RSL➣Remote Sensing Laboratory |
| RSL➣Rygge Sivile Lufthavn (Norwegian civilian airport) |
| RSL➣Relative Sea Level |
| RSL➣Runtime Shared Library |
| RSL➣Renderman Shading Language |
| RSL➣RAISE Specification Language |
| RSL➣Received Signal Level |
| RSL➣Regina Shipping Lines (Philippines) |
| RSL➣Restricted Service License (radio) |
| RSL➣Republic of Sierra Leone |
| RSL➣Reserve Static Line |
| RSL➣Rethinking School Lunch |
| RSL➣Recovery Service Level (risk management) |
| RSL➣Royal Society of London (scientific academy; London, England, UK) |
| RSL➣Radio Station License (various locations) |
| RSL➣Revolutionary Socialist League (British Trotskyist Group) |
| RSL➣Rofin-Sinar Laser (Germany) |
| RSL➣Real Soon Now |
| RSL➣Rambus Signaling Level |
| RSL➣Reusable Sanitary Landfill |
| RSL➣Robot Scripting Language |
| RSL➣Robotic Systems Laboratory (Santa Clara University; Santa Clara, CA) |
| RSL➣Requirements Specification Language |
| RSL➣Regional Screening Level (US EPA) |
| RSL➣Reusable Software Library |
| RSL➣Recommended Standard List (US FEMA) |
| RSL➣Regional Stocking Location (various organizations) |
| RSL➣Requirements Statement Language |
| RSL➣Ruwa Sped Ltd. (Switzerland) |
| RSL➣Rising Step Load |
| RSL➣Remote SPRINT Launch |
| RSL➣Radar Software Library (US NASA) |
| RSL➣Radiological Society of Louisiana |
| RSL➣Relative Strength Levy |
| RSL➣Ready Service Locker(s) |
| RSL➣Request and Status Links (telephony) |
| RSL➣Reference System Lab |
| RSL➣Research Status Log |
| RSL➣Rhône-Saône et Loire (French railway company) |
| RSL➣Redneck as Second Language |
| RSL➣Representative Stim Latch |
| RSL➣Returned Soldiers League/Legion |
| RSL➣Rail Safety Law |
| RSL➣Roof Switch Lock Module |
| RSL➣Responsible Server List (Compaq) |
| RSL➣Right Subscapular Line |
| RSL➣Resalab Scientific Library |
| RSL➣RoboCupRescue Simulation League |