| S.L.R. | Signed, Lower Right 
| Others |
| SLR | Salt Lake Roadsters
| Others |
| SLR | Salt Lake Runner
| Others |
| SLR | Satellite Laser Ranging
| Others |
| SLR | Saturday Long Run
| Others |
| SLR | Sauvons La Recherche
| Others |
| SLR | Scalable Linear Recording
| Others |
| SLR | School Level Reporting
| Others |
| SLR | School Library Research
| Others |
| SLR | Sea Level Rise
| Others |
| SLR | Sea-level Rise
| Others |
| SLR | Seating cum Luggage Rake
| Others |
| SLR | Sebastien Loeb Racing
| Others |
| SLR | Select Low Regelung
| Others |
| SLR | Self Limiting Ration
| Others |
| SLR | Self Loading Rifle
| Others |
| SLR | Semi Lagrangian Relaxation
| Others |
| SLR | Sending Loudness Rating
| Others |
| SLR | Senior Living Residences
| Others |
| SLR | Service Level Reporter
| Others |
| SLR | Service Line Reporting
| Others |
| SLR | SHIMANO Linear Response
| Others |
| SLR | Shore Line Route [rail]
| Others |
| SLR | Short Latency Response
| Others |
| SLR | Shwartzman local reaction
| Others |
| SLR | Silly Little Ranger
| Others |
| SLR | Simple Linear Regression
| Others |
| SLR | Singapore Law Reports
| Others |
| SLR | Single Lane Road
| Others |
| SLR | Single Lane Roundabout
| Others |
| SLR | Single Lens Reflex
| Others |
| SLR | single lens reflex [camera]
| Others |
| SLR | Slphur Springs Municipal Airport
| Others |
| SLR | Small Lattice Relaxation
| Others |
| SLR | Small Lot Reserve
| Others |
| SLR | Smells Like Records
| Others |
| SLR | Sorely Lacking Relief
| Others |
| SLR | Sorry for Late Reply
| Others |
| SLR | Sorry Late Reply
| Others |
| SLR | Sorry, Late Reply
| Others |
| SLR | Sound Lab Records
| Others |
| SLR | Source Local Reference
| Others |
| SLR | Special Limited Reserve
| Others |
| SLR | Speed Limit Recognition
| Others |
| SLR | Speed Limit Reminder
| Others |
| SLR | Sport Leicht Rennsport
| Others |
| SLR | Sport Light Racing
| Others |
| SLR | Sporty, Light, And Racing
| Others |
| SLR | Sri Lanka Railways
| Others |
| SLR | Sri Lankan Rupee
| Others |
| SLR | St. Lawrence and Atlantic Railroad
| Others |
| SLR | Standard Lens Reflex
| Others |
| SLR | Standard Lense Reflex
| Others |
| SLR | Stanford Law Review
| Others |
| SLR | Starlight Roof
| Others |
| SLR | State Level Registry
| Others |
| SLR | State Liaison Representative
| Others |
| SLR | Statement of Legal Residence
| Others |
| SLR | Static Loaded Radius
| Others |
| SLR | Statutory Liquidity Ratio
| Others |
| SLR | Stealing Left Right
| Others |
| SLR | Steam Lock Release
| Others |
| SLR | Straight Leg Raise
| Others |
| SLR | Straight Leg Raises
| Others |
| SLR | Straight Leg Raising
| Others |
| SLR | Street Legal Racing
| Others |
| SLR | Student Late Receipt
| Others |
| SLR | Subcommittee for Legislative Relief
| Others |
| SLR | Subthalamic Locomotor Region
| Others |
| SLR | Suburban Land Reserve
| Others |
| SLR | Summary Listing Report
| Others |
| SLR | Super Low Racer
| Others |
| SLR | Super Lupe Rap
| Others |
| SLR | Super Luxury Racing
| Others |
| SLR | Supercilious Like Randall
| Others |
| SLR | Supplement Labeling Revision
| Others |
| SLR | Supplementary Local Rules
| Others |
| SLR | Sweet Little Rifle
| Others |
| SLR | Synthetic Lipid Remover
| Others |
| SLR | System Language Runtime
| Others |
| SLR | The Strawberry Light Railway
| Others |