SLR
- Digital single-lens reflex camera
- Holden Torana
- L1A1 SLR
- Mercedes-Benz 300 SLR
- Mercedes-Benz SLR McLaren
- SLR (company)
- Salar language
- Satellite laser ranging
- Scalable Linear Recording
- Scanline rendering
- Sea level rise
- Semi-automatic rifle
- Semi-linear resolution
- Sending loudness rating
- Service List Registry
- Shimano
- Simple LR parser
- Simple linear regression
- Single-lens reflex camera
- Sri Lanka Railways
- St. Lawrence and Atlantic Railroad
- Stanford Law Review
- Statutory liquidity ratio
- Systematic review
- Sébastien Loeb Racing