| Acronym | Definition |
|---|
| SPI➣Service Provider Interface |
| SPI➣Security Parameter Index |
| SPI➣South Padre Island (Texas) |
| SPI➣Stateful Packet Inspection (firewall based protocol) |
| SPI➣Suicide Prevention International (New York, NY) |
| SPI➣Serial Peripheral Interface |
| SPI➣Software Process Improvement |
| SPI➣Sensitive Personal Information (privacy) |
| SPI➣Society of the Plastics Industry |
| SPI➣Sensor Products Inc (East Hanover, New Jersey) |
| SPI➣Software in the Public Interest, Inc |
| SPI➣Solar Power, Inc. (Rosewall, CA) |
| SPI➣Solder Paste Inspection (circuit boards) |
| SPI➣Seattle Post Intelligencer (Newspaper) |
| SPI➣Soy Protein Isolate |
| SPI➣Superintendent of Public Instruction (Washington State) |
| SPI➣Smart Plug-Ins |
| SPI➣Synchronous Peripheral Interface |
| SPI➣Software Process Impediment |
| SPI➣Split Port Injection |
| SPI➣Security Parameters Index |
| SPI➣Smart Plug-in |
| SPI➣Single Point Imaging |
| SPI➣Service Programming Interface |
| SPI➣Service Profile Identifier |
| SPI➣Synchronous Parallel Interface |
| SPI➣Safeguarding Proprietary Information |
| SPI➣System Parameters Information |
| SPI➣Software Process and Infrastructure |
| SPI➣Security Policy Index |
| SPI➣Suse Plug-in |
| SPI➣Single Point Interchange |
| SPI➣Sub Port Identifier |
| SPI➣Stateful Packet Inspection |
| SPI➣Schedule Performance Index |
| SPI➣Sciences pour l'Ingénieur (French: Engineering Science; university course) |
| SPI➣Summary of Project Information (various organizations) |
| SPI➣SCSI Parallel Interface |
| SPI➣Swiss Performance Index (trademark of SWX Swiss Exchange) |
| SPI➣Sony Pictures Imageworks |
| SPI➣Socialist Party of Ireland (political party) |
| SPI➣Summary of Proposed Investment (various organizations) |
| SPI➣Swiss Post International |
| SPI➣Standardized Precipitation Index |
| SPI➣Study of Perioperative Ischemia |
| SPI➣Service and Product Innovation (North Carolina State University) |
| SPI➣Systems Products International |
| SPI➣Società Psicoanalitica Italiana |
| SPI➣Silverstein Properties, Inc. (est. 1957; various locations) |
| SPI➣Share Price Index (weighted index of Australian share prices) |
| SPI➣Servizi per l'Impiego (Italian: Employment Services) |
| SPI➣Sensor Point of Interest (US Air Force) |
| SPI➣Syndicat des Producteurs Indépendants (French: Union of Independent Producers) |
| SPI➣Simulations Publications Inc (game company) |
| SPI➣Single Process Initiative |
| SPI➣Standard Parallel Interface (computing) |
| SPI➣System Packet Interface |
| SPI➣Software Patent Institute |
| SPI➣State Pedagogical Institute (various locations) |
| SPI➣Svenska Petroleum Institutet (Swedish Petroleum Institute) |
| SPI➣System Programming Interface |
| SPI➣Sisters of Perpetual Indulgence (aka Order of Perpetual Indulgence) |
| SPI➣Safer Patients Initiative (clinical study; UK) |
| SPI➣Structural Pest Inspector |
| SPI➣SmartPlant Instrumentation (Intools) |
| SPI➣Southern Police Institute |
| SPI➣Sales Price Increase |
| SPI➣Student Press Initiative |
| SPI➣Society for Philosophical Inquiry |
| SPI➣Software, Platform, Infrastructure (cloud computing) |
| SPI➣Security Profile Inspector |
| SPI➣Single Point Injection |
| SPI➣Social Performance Indicators |
| SPI➣Strategic Partnership Initiative (various organizations) |
| SPI➣Strategic Planning Initiative |
| SPI➣Space Policy Institute (George Washington University) |
| SPI➣Single Page Interface (web pages) |
| SPI➣Studio Progettazione Immagine (Italy; website development and marketing company) |
| SPI➣Security Policy Initiative |
| SPI➣Small Parts, Inc. |
| SPI➣Society of Practitioners of Insolvency (UK) |
| SPI➣Statutory Performance Indicator |
| SPI➣Sciences Physiques pour l'Ingénieur (French: Physical Sciences for the Engineer) |
| SPI➣Society of Professional Investigators |
| SPI➣Spectrometer on Integral |
| SPI➣Spots Per Inch |
| SPI➣Senior Photographers International (Venice, FL) |
| SPI➣Second Palestinian Intifada |
| SPI➣Self-Paced Instruction |
| SPI➣Suomen Projekti-Instituutti Oy (Finnish: Finnish Institute of Project Management) |
| SPI➣Segment Play Items |
| SPI➣Strategic Planning and Information |
| SPI➣Sow Productivity Index |
| SPI➣Shipping Point Inspection |
| SPI➣Significant Performance Impact |
| SPI➣Strategic Profits Inc |
| SPI➣Support Program Integrator (US DoD) |
| SPI➣Springfield, IL, USA - Capital Airport (Airport Code) |
| SPI➣Standard Practice Instruction |
| SPI➣Software Paradigms Infotech, Pvt. Ltd. (various locations) |
| SPI➣Safeguard Against Privacy Invasions (anti-spyware act) |
| SPI➣Sojuzplodimport |
| SPI➣Software Process Innovations |
| SPI➣Subsequent Protocol Identifier |
| SPI➣SDH Physical Interface |
| SPI➣System Property Intervals |
| SPI➣Ship/Port Interface |
| SPI➣SaaSpaasiaaS (cloud services) |
| SPI➣Subsystem Programmatic Interface |
| SPI➣Source Potential Index |
| SPI➣Special Position Identifier (aircraft transponder Mode A capability) |
| SPI➣Service Performance Indicator |
| SPI➣Surface Position Indicator |
| SPI➣Synchronous Physical Interface |
| SPI➣Sites Pédagogiques Indépendants (French: Independent Educational Sites) |
| SPI➣Sierra Pacific Innovations Corp. (Las Vegas, NV) |
| SPI➣Syngenta Philippines Inc. (Makati City, Philippines) |
| SPI➣Stroke Prevention Initiative |
| SPI➣Software Piracy Intervention |
| SPI➣Stub Programming Interface |
| SPI➣Special Processing Indicator |
| SPI➣Sequential Port Injection |
| SPI➣Spiral Point of Intersection |
| SPI➣Single Program Initiator |
| SPI➣Standard Programmatic Interface |
| SPI➣Signal Propagation of Interconnects (IEEE workshop) |
| SPI➣Sexual Preference Insult |
| SPI➣Science Program Implementation |
| SPI➣Semi-Autogenous Grining Power Index |
| SPI➣Shinko Principal Investment (Japan) |
| SPI➣Special Personnel Insertion (Rigging) |
| SPI➣Shreveport Paranormal Investigations (Louisiana) |
| SPI➣Software Property Inventory (USACE) |
| SPI➣Shared Programming Interface (SunCom) |
| SPI➣Shipping Procedural Instructions |
| SPI➣State Pain Initiative (American Alliance of Cancer Pain Initiatives) |
| SPI➣Scheduled and Pending Inventory |
| SPI➣Specialist, Punched Card Accounting Machine Operator (US Navy) |
| SPI➣Sysware Philippines Inc (Republic of the Philippines) |
| SPI➣Situational Problem Input |
| SPI➣System Programmable Interrupt |
| SPI➣Shell Process Infrastructure |
| SPI➣South Panafrican International (Togo) |
| SPI➣Special Packaging/Processing Instruction(s) |
| SPI➣Société de Peinture Industrielle (French: Industrial Painting Company) |
| SPI➣Strategic Psychological Intelligence (trademark of Boswell Group) |
| SPI➣Softpro India (Computer Technologies Pvt Ltd) |