| Acronym | Definition |
|---|
| SSM | Same Sex Marriage |
| SSM | Surface-to-Surface Missile |
| SSM | Security Services Module (Cisco - Asa 5500) |
| SSM | Source-Specific Multicast |
| SSM | Special Sensor Microwave |
| SSM | Soft Systems Methodology |
| SSM | System Software Manager |
| SSM | Student Solutions Manual (textbook purchase option) |
| SSM | Suruhanjaya Syarikat Malaysia (Malay: Companies Commission of Malaysia) |
| SSM | Sault Sainte Marie (Michigan) |
| SSM | Spectacular Spider-Man (comic book) |
| SSM | Startup Shutdown and Malfunction |
| SSM | Super Size Me (movie) |
| SSM | Squadron Sergeant Major (Canadian) |
| SSM | School Science and Mathematics (Association) |
| SSM | System Status Management |
| SSM | Solid State Memory |
| SSM | Sound Status Memory |
| SSM | Society of the Sacred Mission (Anglican religious order) |
| SSM | Synchronization Status Message |
| SSM | Software Subcontract Management |
| SSM | Spread Spectrum Modulation |
| SSM | Silver Star Medal |
| SSM | Set System Mask |
| SSM | Socialistický Svaz Mládeže (Czech: Socialist Union of Youth) |
| SSM | Single Segment Message (SMDS) |
| SSM | Special Service Medal (Canadian Forces) |
| SSM | Source-Specific Multicasting |
| SSM | Supersymmetric Standard Model (Physics) |
| SSM | System Security Manager |
| SSM | Sign Status Matrix (aviation) |
| SSM | Search in Social Media (workshop) |
| SSM | Savunma Sanayii Mustesarligi (MoD of Turkey, Undersecratariat for Defence Industries) |
| SSM | Subsystem Manager |
| SSM | Society for Social Medicine (UK) |
| SSM | Scanning SQUID (Superconducting QUantum Interference Device) Microscope/Microscopy |
| SSM | System Support Manager |
| SSM | Szymanski, Shettler, Morris (band) |
| SSM | Storage Service Management |
| SSM | Solid Surface Material (millworking) |
| SSM | Support System Module |
| SSM | Static Spectrum Management |
| SSM | Stochastic Segment Model |
| SSM | Service Session Manager |
| SSM | Sync Status Messaging (Hitachi) |
| SSM | Sales & Service Management |
| SSM | Atlantic Spanish Mackerel (FAO fish species code) |
| SSM | Serial Storage Media |
| SSM | Secure Software Modules |
| SSM | Scale Ship Modeler (magazine) |
| SSM | Shared Services Model |
| SSM | System Safety Manager |
| SSM | Storage System Manager |
| SSM | scale-similarity model |
| SSM | Soldier System Modeling |
| SSM | Scalable Session Message |
| SSM | System Schematic Manual (Airspace Industry) |
| SSM | Single System Management |
| SSM | Simultaneous Switched Matrix (Hotrail) |
| SSM | Ship Systems Manual |
| SSM | Spectrum Security Manager (Aprisma Management Technologies) |
| SSM | Support Service Module |
| SSM | Segment Space Management |
| SSM | Spread Spectrum Modem |
| SSM | Savunma Sanayii Müsteþarlýðý (Turkish Undersecretariat of Defense) |
| SSM | Spacecraft Subsystems Monitoring |
| SSM | Subscriber Service Modules (Shasta Networks) |
| SSM | Service & Sales Management (ERP) |
| SSM | Simulation Support Module |
| SSM | Ship System Manual |
| SSM | Standard Survey Monument |
| SSM | Sesame Meal |
| SSM | Slap Skateboarding Magazine |
| SSM | School Sciences and Mathematics |
| SSM | Schneider Sales Management (Greenwood Village, CO) |
| SSM | Scottish Ship Management Ltd. (UK; 1968-1986) |
| SSM | Switch Software Management |
| SSM | Specialist Staff Member |
| SSM | Select Subgrade Material (construction) |
| SSM | Subspace Smoothing Method |
| SSM | Southern Silk Mills, Inc. |
| SSM | Saved Souls Ministries (Penndel, PA) |
| SSM | Signaling Support for Multicast (IEEE) |
| SSM | Special Support Manager |
| SSM | Super Software Marketing, Eppelheim, Germany |
| SSM | Switch Signal Monitor |
| SSM | Steering Sensor Monitor |
| SSM | Sector Suite Map (air traffic control) |
| SSM | System Statement Management |
| SSM | Similar Statement Map |
| SSM | Scooter Scene Magazine |
| SSM | Standard Supply Module |
| SSM | Signal Status Matrix |
| SSM | Sociedad de Socorros Mutuos (Spanish: Mutual Aid Society; Peru) |
| SSM | Server Scanmaster |
| SSM | Service and SLA Management (Ciena) |
| SSM | Special Safeguard Mechanism (World Trade Organization) |
| SSM | Selected Study Module |
| SSM | Sam Schmidt Motorsports (est. 2001) |
| SSM | Senior Straight Male (dating website jargon) |
| SSM | Social Sciences and Math (University of Victoria; Canada) |
| SSM | Scientific Support Manager (various organizations) |