| Acronym | Definition |
|---|
| MSP | Managed Service Provider |
| MSP | Medicare Secondary Payer |
| MSP | Managing Successful Programmes |
| MSP | Mazdaspeed Protege (limited edition Mazda) |
| MSP | Microsoft Project |
| MSP | Michigan State Police |
| MSP | Maryland State Police |
| MSP | Medical Services Plan |
| MSP | Microsoft Points |
| MSP | Member of the Scottish Parliament (UK) |
| MSP | Mobility Services Platform (Symbol Technologies) |
| MSP | Microsoft Student Partners |
| MSP | Minimum Support Price (India) |
| MSP | Ministerio de Salud Pública (Uruguay) |
| MSP | Message Send Protocol |
| MSP | Massachusetts State Police |
| MSP | Mounting Solutions Plus |
| MSP | Medicare Savings Program |
| MSP | Manic Street Preachers (UK band) |
| MSP | Methylation-Specific PCR (Polymerase Chain Reaction) |
| MSP | Microsoft Paint (File Name Extension) |
| MSP | Merchant Service Provider |
| MSP | Mobile Service Provider |
| MSP | Merozoite Surface Protein |
| MSP | Multiplex Section Protection (Pirelli) |
| MSP | Management Service Provider |
| MSP | Multi-Service Platform |
| MSP | Maritime Security Program |
| MSP | Member Service Provider |
| MSP | Minnesota State Patrol |
| MSP | Ministarstvo Spoljnih Poslova (Ministry of Foreign Affairs, Serbia and Montenegro) |
| MSP | Media Service Provider |
| MSP | Milli Selamet Partisi |
| MSP | Message Security Protocol |
| MSP | Medium-Sized Project |
| MSP | Music Service Provider |
| MSP | Microsoft Solution Provider |
| MSP | Meter Service Provider |
| MSP | Mediterranean Solar Plan (EU) |
| MSP | Mouvement de la Société pour la Paix (Movement of a Peaceful Society; political party, Algeria) |
| MSP | Munchausen's Syndrome by Proxy |
| MSP | MUD Sound Protocol (sound in text-based games) |
| MSP | Millisecond Pulsar |
| MSP | Maserati Stability Program |
| MSP | Mission-Specific Platform (Integrated Ocean Drilling Program) |
| MSP | Mars Surveyor Program |
| MSP | Maine State Prison |
| MSP | Major Surface Protease (glycoprotein) |
| MSP | Messaging Service Provider |
| MSP | Mean Street Posse (wrestlers) |
| MSP | Movimento Sviluppo e Pace |
| MSP | Manitoba Society of Pharmacists (Canada) |
| MSP | manufacturer's suggested price |
| MSP | Mobile Solutions Platform (One Bridge) |
| MSP | Multistandard Sound Processor (Micronas audio/video chipset) |
| MSP | Managed Staffing Program (Sprint/Kelly Services) |
| MSP | Mission Support Plan |
| MSP | Mutual Security Program |
| MSP | Mobile Sensor Platform |
| MSP | Merit System Principles |
| MSP | Marketplace Service Provider |
| MSP | Multimedia Streaming Protocols |
| MSP | Maintenance Support Plan |
| MSP | Management System Planning |
| MSP | Managed Service Point (USPS) |
| MSP | Motor Starter Protector |
| MSP | Magneto/Storm/Psylocke (fighting gaming) |
| MSP | Microsphere Plate |
| MSP | Message Stream Protocol |
| MSP | Migrante Sectoral Party (political group) |
| MSP | Mach Sweep Programmer (US Navy aviation) |
| MSP | Metro Service Providers |
| MSP | Marine Safety Program (USCG) |
| MSP | Manual Switch to Protection |
| MSP | Maintenance Support Package |
| MSP | Managing State Projects |
| MSP | Mobile Solution Provider |
| MSP | Medium Spiny Projection (neuron type) |
| MSP | Maximum Selling Price |
| MSP | Modular Switching Peripheral (Redcom) |
| MSP | Messaging Pipeline (web newsletter) |
| MSP | Material Support Package |
| MSP | Medium Speed Printer |
| MSP | Multi-Stroke Pneumatic (airgun) |
| MSP | Modified Set Partitioning |
| MSP | Mission Services Program (US NASA) |
| MSP | Multiplex Switching Protection (Cisco Systems) |
| MSP | Money Sex Power |
| MSP | Maintenance Status Panel |
| MSP | Mutual Support Program |
| MSP | Maintenance and Supervision Processor (NEC) |
| MSP | Management Symposium Program |
| MSP | Mission Specific Processor |
| MSP | Mode-switch Scenario Pattern |
| MSP | Mikhailyuk, Sorokolat and Partners (Ukrainian patent and trademark law firm) |
| MSP | Material Support Program |
| MSP | Medical Supply Point |
| MSP | Master Simulator Program |
| MSP | Message Sequence Protocol |
| MSP | Main Supply Point |
| MSP | Multi-chassis Synchronization Protocol |
| MSP | Materials and Structures Program |
| MSP | Maximum Speed Points (Soaring Society of America) |
| MSP | Marker Separation Property |
| MSP | Message Stream Processing |
| MSP | Microsoft Security Professional |
| MSP | Minneapolis, MN, USA - Minneapolis/St Paul International Airport (Airport Code) |
| MSP | Main Steam Pressure |
| MSP | Medicaid in Schools Program (educational funding program; Ohio) |
| MSP | Maximum Speed Phase |
| MSP | Manawa Sanwardana Padanama (Sri Lanka) |
| MSP | Ministerstwo Skarbu Panstwa (Polish: Ministry of the Treasury) |
| MSP | Math and Science Partnership |
| MSP | Medical Surveillance Program |
| MSP | Monthly Savings Plan |
| MSP | Main Street Project (various organizations) |
| MSP | Museum Studies Program (various schools) |
| MSP | Marine Spatial Planning (various organizations) |
| MSP | Minneapolis and St. Paul (Minnesota) |
| MSP | Memorial Scholarship Program (Japanese American Veterans Association) |
| MSP | Merck/Schering-Plough (pharmaceuticals) |
| MSP | Marine Shale Processors, Inc. (Louisiana) |
| MSP | Mass Spectrometry/Proteomics (various schools) |