| Acronym | Definition |
|---|
| SITAC | Swedish Institute for Technical Approval in Construction |
| SITAC | Site Acquisition |
| SITAC | Spectral Imagery Technology Applications Center |
| SITAC | Spectral Information Technology Applications Center (Fairfax, VA; US DoD) |
| SITAC | Student Information Technology Advisory Committee (various schools) |
| SITAC | Syndicat Intercommunal des Transports Urbains de l'Agglomération du Calaisis (French: Municipal Urban Transportation Agglomeration Union of Calais; Calais, France) |
| SITAC | Société d'Ingénierie pour les Techniques de l'Aménagement et de la Construction (French: Engineering Company for Planning and Construction Technology) |