SPI may refer to:

Organizations

Indian Protection Service Brazil's Indian Protection Service (''Serviço de Proteção aos Índios'', abbreviated as SPI) was a government agency created to administer indigenous affairs. It was created by President Nilo Peçanha in 1910 in response to pressure from Marshal ...

(''Serviço de Proteção ao Índio''), Brazil * Shotmed Paper Industries, an Egyptian paper manufacturers *

Simulations Publications, Inc. Simulations Publications, Inc. (SPI) was an American publisher of board wargames and related magazines, particularly its flagship ''Strategy & Tactics'', in the 1970s and early 1980s. It produced an enormous number of games and introduced innovati ...

, a former US board game publisher * Sony Pictures Imageworks *

Stream Processors, Inc Stream Processors, Inc was a Silicon Valley-based fabless semiconductor company specializing in the design and manufacture of high-performance digital signal processors for applications including video surveillance, multi-function printers and vid ...

, a semiconductor company *

Sisters of Perpetual Indulgence The Sisters of Perpetual Indulgence (SPI), also called Order of Perpetual Indulgence (OPI) is a charity, protest, and street performance organization that uses drag and religious imagery to call attention to sexual intolerance and satirizes issue ...

, an LGBT group * Society for Philosophical Inquiry * Society of the Plastics Industry, a U.S. trade association * Software in the Public Interest *

Software Patent Institute Software Patent Institute (established 1992 in Ann Arbor) is an American non-profit corporation established to assist in the correct assignment of software patent. It originally had the name ''University of Michigan Software Patent Institute'', ...

, US *

St. Pascual Institution Colegio de San Pascual Baylon
Manila Bulletin or the College of St. Paschal Baylon (CSPB, formerly ''Escue ...

, Philippines school *

St. Paul's Institution , motto_translation = Virtue and labour , established = 1899 , closed = , type = All-boys primary and secondary school , status = , category_label = , category = , grades ...

, a school in Malaysia *

Sustainable Preservation Initiative The Escala Initiative now operates the programs of the Sustainable Preservation Initiative. It is focused on helping women entrepreneurs in developing countries build a better future for themselves, their families, and their communities. Through i ...

, of cultural heritage *

Sveriges Pensionärers Intresseparti The Swedish Senior Citizen Interest Party (Sveriges pensionärers intresseparti, SPI Välfärden) is a political party in Sweden. As of 2018, it holds no seats in parliament or regional councils, but is represented in Hörby Hörby () (old da, ...

, or Swedish Senior Citizen Interest Party * Social Progress Imperative, a US-based nonprofit created in 2012

Computing

SCSI Parallel Interface Parallel SCSI (formally, SCSI Parallel Interface, or SPI) is the earliest of the interface implementations in the SCSI family. SPI is a parallel bus; there is one set of electrical connections stretching from one end of the SCSI bus to the oth ...

* Serial Peripheral Interface *

Security Parameter Index The Security Parameter Index (SPI) is an identification tag added to the header while using IPsec for tunneling the IP traffic. This tag helps the kernel discern between two traffic streams where different encryption rules and algorithms may be i ...

in IPSec tunneling * Service provider interface, an API *

Software Process Improvement Software is a set of computer programs and associated documentation and data. This is in contrast to hardware, from which the system is built and which actually performs the work. At the lowest programming level, executable code consists o ...

, of

Data & Analysis Center for Software The Data & Analysis Center for Software (DACS) was one of several United States Department of Defense (DoD) sponsored Information Analysis Centers (IACs), administered by the Defense Technical Information Center (DTIC). It was managed by the U.S. ...

* System Packet Interface for networking *

Stateful Packet Inspection In computing, a stateful firewall is a network-based firewall that individually tracks sessions of network connections traversing it. Stateful packet inspection, also referred to as dynamic packet filtering, is a security feature often used in ...

for networking

Other uses

Single-point injection Manifold injection is a mixture formation system for internal combustion engines with external mixture formation. It is commonly used in engines with spark ignition that use petrol as fuel, such as the Otto engine, and the Wankel engine. In a mani ...

* '' Social Progress Index'' of countries * Abraham Lincoln Capital Airport (IATA code), US *

Sediment Profile Imagery Sediment Profile Imagery (SPI) is an underwater technique for photographing the interface between the seabed and the overlying water. The technique is used to measure or estimate biological, chemical, and physical processes occurring in the fir ...

underwater * Spi-calculus, a proposed extension of

Π-calculus In theoretical computer science, the -calculus (or pi-calculus) is a process calculus. The -calculus allows channel names to be communicated along the channels themselves, and in this way it is able to describe concurrent computations whose networ ...

Swiss Performance Index The Swiss Performance Index (SPI) is a wide total-return index that tracks equity primarily listed on SIX Swiss Exchange with a free-float of at least 20%, and excluding investment companies. The index covers large, mid and small caps and is w ...

, a stock index

Organizations

Computing

Other uses

See also