| Acronym | Definition |
|---|
| ssp | subspecies |
| SSP | Society for Scholarly Publishing |
| SSP | Secretaría de Seguridad Pública (Spanish: Secretariat of Public Security, Mexico) |
| SSP | Statutory Sick Pay |
| SSP | Shared Service Provider (telecommunications) |
| SSP | Scottish Socialist Party |
| SSP | Service Switching Point |
| SSP | Senior Superintendent of Police |
| SSP | Space Solar Power |
| SSP | Ship Security Plan |
| SSP | Secretaria de Segurança Pública |
| SSP | Space Shuttle Program (NASA) |
| SSP | Surround Sound Processor |
| SSP | Security Support Provider (Microsoft Windows NT/2000) |
| SSP | Species Survival Plans |
| SSP | Single Super Phosphate (fertilizer) |
| SSP | Storage Service Provider |
| SSP | System Security Plan |
| SSP | Synchronous Serial Port |
| SSP | Statistical Signal Processing (IEEE Workshop) |
| SSP | Strategic Systems Programs |
| SSP | State Second Pension (UK) |
| SSP | Summer Science Program |
| SSP | Site Security Plan (US DHS) |
| SSP | Secondary School Program (Harvard University; Cambridge, MA) |
| SSP | Security Service Provider |
| SSP | Shameless Self-Promotion |
| SSP | Stainless Steel Pipe |
| SSP | Stockpile Stewardship Program |
| SSP | Serial Scsi Protocol (SAS) |
| SSP | Steering Stability Program (automotive) |
| SSP | Source Selection Plan |
| SSP | Surface Science Package |
| SSP | Switch-to-Switch Protocol (RFC 1434) |
| SSP | System Support Program |
| SSP | Support Services Program |
| SSP | System Safety Program |
| SSP | Self-Sufficiency Program (welfare reform) |
| SSP | Shooting Star Press (publisher) |
| SSP | Symposium on Security and Privacy (IEEE) |
| SSP | System Service Processor (Sun) |
| SSP | Silicon Switch Processor (Cisco) |
| SSP | Solid-State Polycondensation (polymers recycling) |
| SSP | Société Suisse de Pédiatrie (French: Swiss Society of Pediatrics; Switzerland) |
| SSP | Sierra Service Project |
| SSP | Sustained Superior Performance |
| SSP | Southern State Parkway (New York) |
| SSP | School Success Profile |
| SSP | Suggested Selling Price |
| SSP | Sound Speed Profile |
| SSP | Sound-Speed Profile (US Navy) |
| SSP | Shooting Star Press (pro wrestling move) |
| SSP | Site Safety Plan |
| SSP | Security Service Platform (eHealth) |
| SSP | Simulation Support Plan |
| SSP | System Stack Pointer |
| SSP | Satellite Service Provider |
| SSP | Supply Side Platform (publishing) |
| SSP | Standard Service Program (National Instruments Corp.) |
| SSP | Sub-Satellite Point |
| SSP | Stock Savings Plan |
| SSP | Site Specific Plan |
| SSP | Sennett Security Products (USA philatelic magazine) |
| SSP | System Service Provider |
| SSP | Standard Switch Panel |
| SSP | Scout/Sniper Platoon (U.S. Marine Corps unit) |
| SSP | Split Spectrum Processing |
| SSP | Society of Scholarly Publishers |
| SSP | Standard Special Provisions |
| SSP | System Switch Processor |
| SSP | Stringent Starvation Protein |
| SSP | Stop Smoking Program |
| SSP | Service Support Program |
| SSP | Siemens Schottel Propulsor (Ship propulsion systems) |
| SSP | Syndicat des Sophrologues Professionnels (French: Professional Sophrologists Union) |
| SSP | Student Sponsor Partners (New York, NY) |
| SSP | Song Show Plus |
| SSP | Single Stroke Pneumatic (airgun) |
| SSP | Switch Signaling Point |
| SSP | System Safety Plan |
| SSP | Single Source Processor |
| SSP | Similarity Stack Protocol |
| SSP | Stockpile Stewardship Plan |
| SSP | Spatial Smoothing Preprocessing |
| SSP | Scientific Services Program |
| SSP | Secure Single-Path (communications protocol) |
| SSP | Scanning Spectral Polarimeter |
| SSP | State Synchronization Protocol (Cisco) |
| SSP | Single Stock Point |
| SSP | Service Signaling Point |
| SSP | Speed, Style and Performance (car and truck club; Florida) |
| SSP | Single Side Polish (semiconductor wafers) |
| SSP | Swiss Society of Psychology (est. 1943) |
| SSP | Shared Segment Protection |
| SSP | System Security Profile |
| SSP | Supplemental Security Payment |
| SSP | Stable Semisubmerged Platform |
| SSP | Single-Shot Probability |
| SSP | Subsystem Prohibited message (ANSI & ITU-T) |
| SSP | System Support Plan |
| SSP | Switch Support Package |
| SSP | Software Support Package |
| SSP | Sidecar Safety Program (motorcycles) |
| SSP | SIGINT Support Plan |
| SSP | Spring Service Project |
| SSP | SSBN Security Program |
| SSP | Star/Sky Photometry |
| SSP | Subsurface Science Program |
| SSP | Siemens Switching Processor |
| SSP | Supplemental Sampling Plan (soil/water contamination) |
| SSP | Super-Scalar Processor |
| SSP | Special Separation Pay |
| SSP | SACEUR Scheduled Program |
| SSP | Signal Service Point |
| SSP | Standard Shipyard Procedure (Newport News Shipbuilding) |
| SSP | Scheduled Strike Program |
| SSP | Secondary Spare Part |
| SSP | Sippah-e- Sahaba Pakistan |
| SSP | Stars Standards Portfolio |
| SSP | System-Specific Procedure(s) |
| SSP | Stockpile Sampling Plan |
| SSP | Social Sector Portal (Trinidad & Tobago) |
| SSP | Split-Step Pade (acoustic propagation) |
| SSP | Secondary Stock Point |
| SSP | Specialty Services Pavillion (Nebraska Medical Center) |
| SSP | Secure Site Programme |
| SSP | Society of St. Paul, Pauline Fathers and Brothers (religious order) |
| SSP | Site Survey Payload |
| SSP | Sensor-to-Shooter Processor |
| SSP | Standards and Standardization Panel |
| SSP | Sosarian Socialist Party (Ultima Online guild) |
| SSP | System Support Package/Processor |
| SSP | Store Ship Pack |
| SSP | South Shore Philharmonic (Lynbrook, NY) |
| SSP | Security Specialist Professional |
| SSP | Shortage Specialty Pay |
| SSP | Sub-Segment Profitability |
| SSP | Static Selfpotential |
| SSP | Steerable Ship Propulsor (maritime steerable propulsion systems; Siemens) |
| SSP | Stentor Settlement Plan (Canada) |
| SSP | Shared Sub-Path |
| SSP | Switch Software Processor |
| SSP | Service Sport Promotion (French: Sport Promotion Service) |
| SSP | Single Source Process |
| SSP | Select Synchronization Port |
| SSP | Systems and Special Projects |
| SSP | Slave Supervisory |
| SSP | Supplemental Sensor Processor/Processing |
| SSP | Sensitive Systems Policy (US DHS) |
| SSP | Sesquicentennial State Park |
| SSP | Student Success Plan (various locations) |
| SSP | Sugar Snap Peas |
| SSP | Swing State Project (now Daily Kos Elections) |
| SSP | System Software Package |
| SSP | Saving Shelter Pets (Georgia) |
| SSP | Statement of Service Performance (New Zealand) |
| SSP | Special Scientific Programs (Alexandria University; Egypt) |
| SSP | Specialist Schools Programme (UK) |