| WSSL | FM-100.5, Greenville, South Carolina
| Others |
| WSSL | Singapore Seletar, Singapore
| Others |
| WSSL | Wallis Shipping Services Ltd
| Others |
| WSSL | Warner Shelter Systems
| Others |
| WSSL | Warner Shelter Systems Limited
| Others |
| WSSL | Weapon Support Stock List
| Others |
| WSSL | Web Security Suite Lockdown
| Others |
| WSSL | Web Services Security Language
| Others |
| WSSL | Web Site for Small Libraries
| Others |
| WSSL | West Side Soccer League
| Others |
| WSSL | West Suburban Science League
| Others |
| WSSL | Western Secondary Standards Laboratory
| Others |
| WSSL | Western Slope State League
| Others |
| WSSL | Western Suburban Soccer League
| Others |