| Acronym | Definition | 
|---|
| STLS➣Structured Total Least Squares | 
| STLS➣Sternberg Triangular Love Scale (social psychology) | 
| STLS➣Southern Tier Library System (Painted Post, NY) | 
| STLS➣Soft Tissue Limb Sarcoma | 
| STLS➣Stinger Launch Simulator | 
| STLS➣Surface Tension Lowering Substance | 
| STLS➣Specified Transfer Listing Service (American Registry for Internet Numbers) | 
| STLS➣Subacute Thyroiditis-Like Syndrome |