Look up spi in Wiktionary, the free dictionary.

SPI may refer to:

• Simulations Publications, Inc., a former US board game publisher
• Sony Pictures Imageworks, a subsidiary of Sony specializing in computer animation
• Stream Processors, Inc, a semiconductor company

• Indian Protection Service, a former Brazilian agency whose Portuguese name (Brazil's native language) is Serviço de Proteção ao Índio
• Sisters of Perpetual Indulgence, an LGBT activism movement
• Society for Philosophical Inquiry, a non-profit organization devoted to propagating a version of Socratic inquiry
• Society of the Plastics Industry, a U.S. trade association
• Software in the Public Interest, an American non-profit organization dedicated to the creation and distribution of free open-source software
• Software Patent Institute, an American non-profit organization assisting in obtaining software patents
• St. Pascual Institution, Philippines school
• St. Paul's Institution, a school in Malaysia
• Sustainable Preservation Initiative, of cultural heritage
• Sveriges Pensionärers Intresseparti, or Swedish Senior Citizen Interest Party
• Social Progress Imperative, a US-based nonprofit created in 2012

• SCSI Parallel Interface, a suite of standards for inter-connecting electronic devices
• Serial Peripheral Interface, the de facto standard for serial communication
• Security Parameter Index in IPSec tunneling
• Server Programming Interface, an API for PostgreSQL to run SQL queries from the C programming language
• Service provider interface, an API for Java
• Software Process Improvement, an approach to software development initiated by the Data & Analysis Center for Software
• System Packet Interface for networking
• Stateful Packet Inspection for networking

• Schedule Performance Index, a figure of merit used in earned value management
• Single-point injection, an obsolete method of injecting fuel into an internal combustion engine
• Social Progress Index of countries
• Abraham Lincoln Capital Airport (IATA code), US
• Sediment Profile Imagery, a technique for underwater photography of the interface between the seabed and the overlying water
• South Padre Island, a resort town in Cameron County, Texas
• Spi-calculus (Synchronous π-calculus), a proposed extension of π-calculus
• Superintendent of Public Instruction, a state-level official in the United States who is responsible for public education (all states have such an official, but some states have a slightly different title for the position)
• Swiss Performance Index, one of the indecies used to measure the performance of the SIX Swiss Exchange

• SPI 200 futures contract, Australian index
• Spy (disambiguation)

This disambiguation page lists articles associated with the title SPI.
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