SLP

• Sea level pressure
• FN Self-Loading Police, an FN Herstal shotgun
• Super long play, a speed format for VHS videotapes
• Systematic Layout Planning, in Management and Organisational science

• Speech-language pathologist

• Service Location Protocol, a service discovery protocol
• Straight-line program, in computational algebra
• Successive linear programming
• System Locked Pre-installation

• St. Louis Park, Minnesota
• Spring Lake Park, Minnesota
• Satish Dhawan Space Centre Second Launch Pad, Sriharikota, India
• Ponciano Arriaga International Airport, by IATA airport code
• San Luis Potosi, a city and state in Mexico.

• Scottish limited partnership
• SLP College, Leeds, England
• Saba Labour Party
• Saint Lucia Labour Party
• Socialist Labour Party (disambiguation)
• Socialist Left Party (Austria)
• Social Liberal Party (Belgium)
• South London Press, a local newspaper

• Marwan (rapper), formerly known as Statsløs Palæstinenser

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