| MS&S | Marketing Sales & Service 
| Others |
| MSS | Main Street Savings
| Others |
| MSS | Maintenance Startup and Shutdown
| Others |
| MSS | Maintenance Status System
| Others |
| MSS | Malaysian Super Series
| Others |
| MSS | Managed Security Services
| Others |
| MSS | Managed Storage Services
| Others |
| MSS | Managed Storage Solution
| Others |
| MSS | Managed Storage System
| Others |
| MSS | Management and Secretariat Services
| Others |
| MSS | Management and Security Server
| Others |
| MSS | Management Seminar Series
| Others |
| MSS | Management Support System
| Others |
| MSS | Manager Self Service
| Others |
| MSS | Manassas Station (Virginia Railway Express- AMTK)
| Others |
| MSS | Manufacturers Standardization Society
| Others |
| MSS | Manufacturing Systems Solutions
| Others |
| MSS | Manuscript text file (Perfect Writer - Scribble - MINCE - Jove)
| Others |
| MSS | Manuscripts
| Others |
| MSS | Marine Scout Snipers
| Others |
| MSS | Marine Systems Simulator
| Others |
| MSS | Mario Super Sluggers
| Others |
| MSS | Market Stabilization Scheme
| Others |
| MSS | Marketing Service Service
| Others |
| MSS | Marketing Students Society
| Others |
| MSS | Marubun Sensor Shield
| Others |
| MSS | Maryland Society of Surveyors
| Others |
| MSS | Marymount Secondary School
| Others |
| MSS | Mass Software Solutions
| Others |
| MSS | Mass Storage Systems
| Others |
| MSS | Massage Stroke Shake
| Others |
| MSS | Massena, New York USA
| Others |
| MSS | Master of Social Service
| Others |
| MSS | Master Shape Shifter
| Others |
| MSS | Masters of Security Studies
| Others |
| MSS | Maternal Serum Screening
| Others |
| MSS | Maternity Support Services
| Others |
| MSS | Maximum Segment Size
| Others |
| MSS | Maximum Strategic Stepping
| Others |
| MSS | Maximum Super Sport
| Others |
| MSS | Maxtor Shared Storage
| Others |
| MSS | Measurement and Stimulus Sub-system
| Others |
| MSS | Mechanical Support System
| Others |
| MSS | Mechanical System Simulation
| Others |
| MSS | Media Smart Server
| Others |
| MSS | Media Streaming Server
| Others |
| MSS | Median Signal Selector
| Others |
| MSS | Medical Social Sciences
| Others |
| MSS | Medical Social Services
| Others |
| MSS | Medical Staffing Solutions
| Others |
| MSS | Medical Student Section
| Others |
| MSS | Medical Students Section
| Others |
| MSS | Medical Surveillance System
| Others |
| MSS | Medicare Statistical System
| Others |
| MSS | Medium Secure Service
| Others |
| MSS | Member Self Service
| Others |
| MSS | Memory Stack Segment
| Others |
| MSS | Meningococcal Septic Shock
| Others |
| MSS | Mental Status Schedule
| Others |
| MSS | Merchant Supply Services
| Others |
| MSS | Merit System Services
| Others |
| MSS | Message Switching System
| Others |
| MSS | Meteorological Satellite Subsystem
| Others |
| MSS | Methodist Senior Services
| Others |
| MSS | Metropolitan Switching System
| Others |
| MSS | Michael Scott Speicher
| Others |
| MSS | Microprocessor Solutions Sector
| Others |
| MSS | microsatellite stability
| Others |
| MSS | Microsoft Safety
| Others |
| MSS | Microsoft Safety Scanner
| Others |
| MSS | Microsoft Sales Specialist
| Others |
| MSS | Microsoft Sans Serif
| Others |
| MSS | Microsoft Search Server
| Others |
| MSS | Microsoft Security Summit
| Others |
| MSS | Microsoft Smooth Streaming
| Others |
| MSS | Microsoft Solutions For Security
| Others |
| MSS | Microsoft Sound System
| Others |
| MSS | Microsoft Speech Server
| Others |
| MSS | Microsoft Sql Server
| Others |
| MSS | Middle School South
| Others |
| MSS | Middle Suprasylvian Sulcus
| Others |
| MSS | Midland Secondary School
| Others |
| MSS | Midwest Sociological Society
| Others |
| MSS | Midwest Special Services
| Others |
| MSS | Migrant Student Services
| Others |
| MSS | Migration Studies Society
| Others |
| MSS | Miles Sound System
| Others |
| MSS | Military Salindais Ship
| Others |
| MSS | Military Sensing Symposia
| Others |
| MSS | Mine Sweeper Sea
| Others |
| MSS | Minimum Sample Size
| Others |
| MSS | Minimum Segment Size
| Others |
| MSS | Ministerio de Seguridad Social
| Others |
| MSS | Ministry Summer Service
| Others |
| MSS | Minnesota Student Survey
| Others |
| MSS | Minor Surgery Suite
| Others |
| MSS | Mission Specialist Station
| Others |
| MSS | Mission Status Summary
| Others |
| MSS | Mission Support Software
| Others |
| MSS | Mission Support System
| Others |
| MSS | Mississippi State Series
| Others |
| MSS | Mitsubishi Space Star
| Others |
| MSS | Mixed Spartan Sagittal
| Others |
| MSS | Mixer Split Seal
| Others |
| MSS | Mobil Super Synthetic
| Others |
| MSS | Mobile Satellite Service
| Others |
| MSS | Mobile Satellite Services
| Others |
| MSS | Mobile Service Structure
| Others |
| MSS | Mobile Servicing System
| Others |
| MSS | Mobile Steam Society
| Others |
| MSS | Mobility Solutions Services
| Others |
| MSS | Mode Swap Sequence
| Others |
| MSS | Modem Substitution Switch
| Others |
| MSS | Modular Sample System
| Others |
| MSS | Modular Sportscar Structure
| Others |
| MSS | Modular Storage Server
| Others |
| MSS | Modular Storage Solution
| Others |
| MSS | Monte Carlo Ss
| Others |
| MSS | Morphine Sulfate Solution
| Others |
| MSS | Most Secret Source
| Others |
| MSS | Motion Sensing Subsystem
| Others |
| MSS | Motion Sickness Susceptibility
| Others |
| MSS | Motor Sports Singapore
| Others |
| MSS | Motor Start Stop
| Others |
| MSS | Motor Status Scale
| Others |
| MSS | Motor Surveillance Service
| Others |
| MSS | Motorcycle Safety School
| Others |
| MSS | Motorola Service Software
| Others |
| MSS | Movable Scaffolding System
| Others |
| MSS | Mucus-Stimulating Substance
| Others |
| MSS | Mulliner Style Specification
| Others |
| MSS | Multi Screen Shot
| Others |
| MSS | Multi Sensory Stimulation
| Others |
| MSS | Multi Speaker System
| Others |
| MSS | Multi Spectral Scanner
| Others |
| MSS | Multi Spectral Scanning
| Others |
| MSS | Multi State System
| Others |
| MSS | Multi System Synchronizer
| Others |
| MSS | Multi-Sensory Stimulation
| Others |
| MSS | Multi-Spectral Scanner
| Others |
| MSS | Multicultural Student Services
| Others |
| MSS | Multilateration Surveillance System
| Others |
| MSS | Multiple Sclerosis Society
| Others |
| MSS | Multiple Sclerosis Susceptibility
| Others |
| MSS | Multiple ScreenShots insanely
| Others |
| MSS | Multiprotocol Switched Server
| Others |
| MSS | Multiservice Switching System
| Others |
| MSS | Multispectral Scanner System
| Others |
| MSS | Municipal Sewage Sludge
| Others |
| MSS | Muscular Subaortic Stenosis
| Others |
| MSS | Muscular Support System
| Others |
| MSS | Musculo-Skeletal System
| Others |
| MSs | Musculoskeletal Symptoms
| Others |
| MSS | Music Search System
| Others |
| MSS | Music Setting Service
| Others |
| MSS | Musician Supreme and Sensational
| Others |
| MSS | My September Story
| Others |
| MSS | Special Minesweeper (MineSweeper, Special)
| Others |