SWL
SWL or swl may refer to:

 Safe working load, of lifting equipment
 Shortwave listening, to radio
 Sound power level
 Socialist Workers League, Israel
 Socialist Workers League (Australia), former name of the Socialist Workers Party in Australia
 Stillwater - Westport Line, New Zealand railway
 Swale railway station, in Kent, England
 SWL, former name of the Tasmanian Football League