| Acronym | Definition |
|---|
| STIAL | Société Tunisienne d'Industrie d'Aluminium (French: Tunisian Company for Aluminium Industry; est. 1980; Tunisia) |
| STIAL | Simposio Sobre la Traducción/Interpretación del/al Alemán (Spanish: Symposium on Translation/Interpretation from/into German) |
| STIAL | South African Test, Identify and Link (HIV testing) |
| STIAL | Sindicato dos Trabalhadores nas Indústrias de Alimentação (Portuguese: Union of Food Industry Workers; Brazil) |
| STIAL | Societe de Transport Industriel Alain Lombard (French: Alain Lombard Industrial Transportation Company; Aix-en-Provence, France) |