| Acronym | Definition |
|---|
| TFSD➣Twin Falls School District (Twin Falls, ID) |
| TFSD➣Thomson Financial Securities Data |
| TFSD➣Total Force Structure Division (USMC) |
| TFSD➣Task Force on Sustainable Development (various organizations) |
| TFSD➣Theatre Film Studies and Dance (St. Cloud State University; Minnesota) |
| TFSD➣Two-Fold Seal Dilution (biology) |