MSP
- Bisulfite sequencing
- Black Knight Financial Services
- MSP (file format)
- MSP Estúdios
- MSP Groza silent pistol
- MST1
- Maastricht Science Programme
- Main-Spessart
- Maine State Police
- Maine State Prison
- Major sperm protein
- Malabar Special Police
- Managed service provider
- Manic Street Preachers
- Marina South Pier MRT station
- Marine spatial planning
- Maryland State Police
- Massachusetts State Police
- Matchstick Productions
- Mathematical Sciences Publishers
- Max/MSP
- Meadowbrook State Parkway
- Mechanically separated poultry
- Medical Services Plan of British Columbia
- Medicare (United States)
- Member of the Scottish Parliament
- Men's Studies Press
- Merozoite surface protein
- Message Send Protocol
- Michigan State Police
- Michigan State Prison
- Microsoft Installer Patch Files
- Microsoft Points
- Microsoft Project
- Microsoft Student Partners
- Microsoft Surface Pro
- Midway station (Minnesota)
- Millisecond pulsar
- Mineral separation plant
- Minerals Security Partnership
- Minimum Support Price
- Minimum spanning tree
- Ministerio de Salud Pública
- Minneapolis–Saint Paul
- Minneapolis–Saint Paul International Airport
- Minnesota State Patrol
- Mississippi State Penitentiary
- Missouri State Penitentiary
- Monosodium phosphate
- Montana State Prison
- Moscow Finnish School
- Movement of Society for Peace
- MovieStarPlanet
- Movimento Sviluppo e Pace
- Multiple sex partners
- National Salvation Party
- Saint Paul Union Depot
- Social Patriot Movement
- TI MSP430