| Abbreviation | Definition |
|---|---|
| SJC | Supreme Judicial Court |
| SJK | Yugoslav League of Communists |
| SK | Sawyer+Kaylen |
| SL | State Library |
| SLA | Service Level Agreement |
| SLA | Supported Living Arrangement |
| SLAC | Stanford Linear Accelerator Center |
| SLAPP | Strategic Lawsuit Against Political Participation |
| SLC | Settlement Lands Committee |
| SLC | Strategic Leaders Conference |
| SLCSC | Successful Legitimate Computer Security Consultant |
| SLE | The Seminarhaus For Leadership And Ethics |
| SLI | Strategic List Item |
| SLIN | Sub Contract Line Item No |
| SLMA | Student Loan Marketing Association |
| SLMP | Sick Leave Management Program |
| SLN | Schedule Line Number |
| SLN | Sub-Line Number |
| SLP | Security Lapse Probe |
| SLP | Strategic Leadership Program |