WSP may refer to:

• Washington State Patrol, the state police agency for the U.S. state of Washington
• Wasserschutzpolizei, the German water police
• Water and Sanitation Program, a trust fund administered by the World Bank geared at improving access to water and sanitation
• Website Pros, now part of Web.com
• Women Strike for Peace, a United States women's peace activist group
• WSP Global, a Canadian-based management and consultancy services business, formerly the London-based WSP Group
• WSP New Zealand, formerly WSP Opus, a subsidiary of WSP Global

• Wandering salesman problem, in discrete optimization, similar to the travelling salesman problem
• Waste stabilization pond, a low-cost basic wastewater treatment process
• Water safety plan, for drinking water
• Web service provider, a provider of a method of communication between two electronic devices over a network
• Web service protocol, for example JSON-WSP
• Wireless Session Protocol, upper layer of the Wireless Application Protocol stack
• Wheel slide protection, used on rail vehicles
• Wireless Short-Packet; see EnOcean
• World Soundscape Project, an acoustic ecology research project

• Wasco State Prison, a state prison in California, US
• Washington Square Park, public park in New York City
• Waspam Airport (IATA Code), Nicaragua
• Wetumpka State Penitentiary, a former prison in Alabama, US
• Wyoming State Penitentiary

• Wantagh State Parkway, in New York
• Widespread Panic, an American jam band
• Wigan St Patricks, an amateur rugby league club based in Wigan, England

• Wire strike protection system, for helicopters
• Windows Search Protocol (MS-WSP), a remote query protocol used in Microsoft File Explorer