| Acronym | Definition |
|---|
| FSTL➣Field Service Team Leader |
| FSTL➣Food Safety Team Leader (various organizations) |
| FSTL➣Fonds Social Transport et Logistique (French: Social Fund Transportation and Logistics; Belgium) |
| FSTL➣Forsvarets Sivile Tjenestemenns Landsforbund (Norwegian: National Men's Civilian Armed Forces Service Association) |
| FSTL➣Forum for Sykehusenes Tekniske Ledelse (Norwegian: Forum for Hospitals Technical Management) |
| FSTL➣Food Service Team Leader |