SLR Single Lens Reflex (camera)
SLR Satellite Laser Ranging
SLR Self Loading Rifle
SLR Sending Loudness Rating
(telecommunications)
SLR Service Level Report
SLR Service Location Register
SLR Side Looking Radar
SLR Single Line Restoral
SLR Single Linear Recording
SLR Slide Raft (aircraft door)
SLR Slush on Runway(s)
SLR Solectron
SLR Spacelift Range
SLR Sri Lanka Rupee (national currency)
SLR Statutory Liquidity Ratio
SLR Stock Level Report
SLR Stock Level Requirement
SLR Straight Leg Raise
SLR Straight Leg Raising
SLR System Level Requirement(s)