SIP

SIP or sip may refer to:

Places

 * Šip (Pale), Bosnia and Herzegovina
 * Šip (Višegrad), Bosnia and Herzegovina
 * Novi Sip, Serbia
 * Simferopol International Airport (IATA: SIP), an airport in Crimea
 * Suzhou Industrial Park, in Suzhou, China

Business, finance, and economics

 * Safety improvement plan, a plan for improving safety
 * Sales incentive plan, a type of employee incentive program
 * Securities information processor, the part of public infrastructure for disseminating market data in the United States
 * Share Incentive Plan, a UK government approved employee plan
 * Systematic investment plan, an investment strategy

Communications and telephony

 * Session Initiation Protocol (SIP), a communications protocol for signaling and controlling multimedia communication sessions, including voice over IP

Networking

 * Service Improvement Plan, a former program to provide a defined level of basic telephone service to all Canadians
 * Standard Interchange Protocol, in library systems
 * System Information Packet, in the DMX512 standard for stage lighting control

Software

 * SIP (software), a tool which generates C++ interface code for the programming language Python
 * Scilab Image Processing, an image processing toolbox
 * Soft Input Panel, on-screen input method for devices without standard keyboards


 * Submission Information Packages, in the Open Archival Information System Reference Model; see Open Archival Information System
 * System Integrity Protection, a security feature of OS X El Capitan by Apple

Semiconductors

 * Semiconductor intellectual property, a business model for licensing intellectual property
 * Single in-line package, for packaging electronic components
 * System in package, chip technology, also known as a chip stack multi-chip module
 * Silicon photonics, silicon semiconductor used as an optical medium

Computing

 * Social information processing, an activity through which collective human actions organize knowledge
 * Supplementary Ideographic Plane, a range of ideographic characters in the Unicode standard
 * Stochastic Information Packet, an array of simulation realizations

Engineering

 * Second-order intercept point, a measure of linearity in amplifiers and mixers
 * Shelter Implementation Plan, will help contain and manage the consequences of the Chernobyl disaster
 * Signature image processing, in welding fault detection
 * Sputter ion pump, a type of vacuum pump
 * Standard inspection procedure, a process for checking compliance
 * Sterilization-in-place, in sanitation of food preparation equipment
 * Structural insulated panel, a composite building material

Enterprises

 * SIP Animation, originally Saban International Paris, France based TV production company
 * Società Italiana per l'Esercizio Telefonico (originally Società Idroelettrica Piemontese), the former name of Telecom Italia
 * Selznick International Pictures, a defunct film studio

Science and mathematics

 * Semi-infinite programming, a type of mathematical optimization problem
 * Spectral induced polarisation, in geophysics
 * Stable-isotope probing, used in molecular biology
 * Statistically improbable phrases, a system used to find unique phrases for use as keywords
 * Stochastic Information Packet, in probability management, a representation of the probability distribution of a variable
 * Strongly implicit procedure, an algorithm for solving a sparse linear system of equations
 * Structure-inducing probes, a peptide synthesis to stabilize long peptides

Other uses

 * "Sip", a song from Joeboy
 * Stranka Ivana Pernara, a Croatian political party
 * Shelter-in-place, an emergency procedure
 * Sip (kinship)
 * Sip or Zip, one of the 18 months of the Haab', a part of the Maya calendric system
 * SIP Grenade, self igniting phosphorus
 * The Society of International Photographers, a not-for-profit organization founded in 1936
 * Soviet Interview Project, a research project conducted in the early 1980s
 * Strangers in Paradise, an award-winning comic book
 * State Implementation Plan, a United States state plan for complying with the federal Clean Air Act
 * Sub-irrigated planter, a type of gardening container
 * Sip as in SipSipStefan
 * "Sip", a 2017 song by Chris Brown from Heartbreak on a Full Moon