- SLAC – State Level Appraisal Committee (Housing)
- SLAC- Scapholunate Advanced Collapse. (Medical Science)
- SLAC – Sparsh Leprosy Awareness Campaign. (Leprosy)
- SLAC – Subscriber Line Audio-processing Circuit (Computer)
- SLAC- System Level Asset Classification (Banking)
- SLAC – Shipper Load Stow and Count (Logistics)
