| Abbreviation | Definition |
|---|---|
| SLC | Senior Logistics Consultant |
| SLCSC | Successful Legitimate Computer Security Consultant |
| SLD | Service Level Director |
| SLE | Specialist leaders of education |
| SLG | Slide Gate Operator |
| SLI | Student Life Instructor |
| SLM | Small Loans Manager |
| SLP | Speech Language Pathologist |
| SLP | Speech/ Language Pathologist |
| SLP | Speech/Language Pathologist |
| SLPA | Speech Language Pathology Assistant |
| SM | Safety Management |
| SM | Salvage Mechanic |
| SM | Service Manager |
| SM | Single Mom |
| SM | Stage Manager |
| SM | StationMaster |
| SM | Sub Manager |
| SM | Supreme Master |
| SMART | Simple Multi Attribute Rating Technique |