| SLO | ERNO Spacelab Operations 
| Others |
| SLO | San Luis Obispo
| Others |
| SLO | San Luis Obispo, California
| Others |
| SLO | Scanning Laser Ophtalmoscopy
| Others |
| SLO | Scanning Laser Ophthalmoscope
| Others |
| SLO | School Liaison Officer
| Others |
| SLO | Seasonal Local Organic
| Others |
| SLO | Senior League Official
| Others |
| SLO | Senior Liaison Officer
| Others |
| SLO | Service Level Objective
| Others |
| SLO | Service Level Objectives
| Others |
| SLO | Sharable Learning Object
| Others |
| SLO | Simple Living Opportunities
| Others |
| SLO | Single Log Out
| Others |
| SLO | Single Logout
| Others |
| SLO | Site License Option
| Others |
| SLO | Space Liaison Officer
| Others |
| SLO | Special Liquor Order
| Others |
| SLO | Special Living Option
| Others |
| SLO | Specifieke Leraren Opleiding
| Others |
| SLO | Stanford's Laptop Orchestra
| Others |
| SLO | Starter Lock Out
| Others |
| SLO | State Land Office
| Others |
| SLO | State Liaison Officer
| Others |
| SLO | Static Large Object
| Others |
| SLO | StreptoLysin O
| Others |
| SLO | Student Learning Objective
| Others |
| SLO | Student Learning Objectives
| Others |
| SLO | Student Learning Outcome
| Others |
| SLO | Student learning Outcomes
| Others |
| SLO | Student License Option
| Others |
| SLO | Student Life Organisation
| Others |
| SLO | Students Life Organization
| Others |
| SLO | Subaru Legacy Outback
| Others |
| SLO | Suggestions for Locality Optimizations
| Others |
| SLO | Summer Lac Ouaureau
| Others |
| SLO | Supporter Liaison Officer
| Others |
| SLO | Sustainable Local and Organic
| Others |
| SLO | Sustainable Local Organic
| Others |
| SLO | Sword Like Object
| Others |
| SLO | System Landscape Optimization
| Others |
| SLO | The Single Largest Owner
| Others |