| Acronym | Definition |
|---|
| FSSL➣Florida Suncoast Soccer League |
| FSSL➣First Securities Services Limited (Bangladesh) |
| FSSL➣Fredericton Senior Soccer League (Canada) |
| FSSL➣Forensic Science Service Laboratory (law enforcement) |
| FSSL➣Fire Support Safety Line |
| FSSL➣Federal Stafford Student Loan |
| FSSL➣Funding Source Summary Ledger (Kentucky) |
| FSSL➣Fault Sample Selection List |