| Acronym | Definition |
|---|
| SLA | Service Level Agreement |
| SLA | Symbionese Liberation Army |
| SLA | Software License Agreement |
| SLA | Special Libraries Association |
| SLA | Sealed Lead-Acid (rechargeable battery) |
| SLA | Second Language Acquisition |
| SLA | Sri Lankan Army |
| SLA | Stereolithography (Rapid prototyping technology) |
| SLA | State Liquor Authority (New York State Division of Alcoholic Beverage Control / State Liquor Authority) |
| SLA | Surplus Line Association (Chicago, IL) |
| SLA | Sudanese Liberation Army |
| SLA | Softwood Lumber Agreement (US/Canada) |
| SLA | Stereolithography Apparatus |
| SLA | South Lebanese Army |
| SLA | Special Leave Accrual |
| SLA | Short-and-Long-arm (automotive suspension) |
| SLA | Sustainable Livelihoods Approach |
| SLA | Secretariat for Legal Affairs (Organization of American States) |
| SLA | Subledger Accounting |
| SLA | Stanford Linear Accelerator |
| SLA | Site-Level Aggregation |
| SLA | Soluble Liver Antigen |
| SLA | Site Level Aggregator |
| SLA | Saskatchewan Library Association |
| SLA | Single Living Accommodation (UK armed forces) |
| SLA | Shuttle Laser Altimeter (US NASA) |
| SLA | Sand-Blasted, Large Grit, Acid-Etched (surface treatment) |
| SLA | Spacecraft Lunar Module Adapter (NASA Saturn V spacecraft) |
| SLA | Slow Left Arm Orthodox (cricket) |
| SLA | State Lead Agency |
| SLA | Stretched Lens Array |
| SLA | Société Canadienne de la Sclérose Latérale Amyotrophique (Amyotrophic Lateral Sclerosis Society of Canada) |
| SLA | Scottish Library Association |
| SLA | Salta, Salta, Argentina - International (Airport Code) |
| SLA | Scanning Laser Altimeter |
| SLA | Synchronous Line Adapter |
| SLA | Single Line Adapter |
| SLA | So Long, Astoria (Ataris song/album) |
| SLA | School Licensing Agreement (Novell) |
| SLA | Sandia Laboratories Albuquerque |
| SLA | Sierra National Airlines, Sierra Leone (ICAO code) |
| SLA | Spell-Like Ability (Dungeons and Dragons) |
| SLA | Service Level Assessment |
| SLA | Sindhi Language Authority |
| SLA | Supplemental License Agreement |
| SLA | Simple Living America |
| SLA | Scanned Linear Array (display technology) |
| SLA | Solutions Latin America (Brasil) |
| SLA | Swiss Labor Assistance (est. 1936; Switzerland) |
| SLA | Service Life Allowance (US DoD) |
| SLA | Smart Living Association |
| SLA | Seven Letter Acronym |
| SLA | Security Logistics Agency |
| SLA | Square Loop Antenna |
| SLA | Sectorial Loop Antenna |
| SLA | Substantial Land Alteration (Planning and Zoning Commissions) |
| SLA | Services Locations Audiovisuels (French: Audiovisual Rental Services) |
| SLA | Six Letter Acronym |
| SLA | Strategic Logistic Agency |
| SLA | Surface Level Analysis |
| SLA | Saved Leave Accrued |
| SLA | Specification Limit Analysis |
| SLA | Student Librarian Association |
| SLA | Student Led Activity |
| SLA | Sri Lankan Association |
| SLA | Sexual Liberation Army |
| SLA | Science Leadership Academy (Philadelphia, PA) |
| SLA | State Licensing Agency (various locations) |
| SLA | Science Learning Assessment (kindergarten) |
| SLA | Scottish Local Authority (UK) |
| SLA | Saskatchewan Lacrosse Association (Canada) |
| SLA | Saturn LEM Adapter |
| SLA | School Library Association (UK) |
| SLA | Studio Legale Associato (Italian law firm) |