SSIL
| Acronym | Definition |
|---|---|
| SSIL | Social Security Integration Level (various locations) |
| SSIL | Sir Syed Institute of Leadership (Pakistan) |
| SSIL | Step Sister-in-Law |
| SSIL | System Subsystem Interface List |
| SSIL | Software Safety Integrity Level |
| SSIL | Seeking Spiritual In Lightment (Hobbs, New Mexico) |
| SSIL | Significant Supply Items List |
| SSIL | Ship's Subsystem Integration List |
| SSIL | SQL (Structured Query Language) Star International Limited (Microsoft partner; India) |