IFS may refer to:

Companies

* Industrial and Financial Systems (IFS AB), a Swedish company and creator of enterprise software * International Film Service, a short-lived animation studio owned by Hearst Communication.

Computer science

* Iterated function system, a method of constructing fractals in mathematics and computer science * Internal field separator, a special set of characters in Unix shells * Interference (intensity) fluctuation spectroscopy, related to dynamic light

scattering In physics, scattering is a wide range of physical processes where moving particles or radiation of some form, such as light or sound, are forced to deviate from a straight trajectory by localized non-uniformities (including particles and radiat ...

* Interframe spacing, a pause which may be required between network packets or network frames * Installable File System, a filesystem API in IBM OS/2 and Microsoft Windows NT * InfoPath Forms Services, a component of SharePoint Server that allows Microsoft Office InfoPath forms to be hosted in a SharePoint web site and serve and fill them using a browser-based interface

Geographical

* Integrated Forecast System a global meteorological model developed by European Centre for Medium-Range Weather Forecasts *

Irish Free State The Irish Free State (6 December 192229 December 1937), also known by its Irish-language, Irish name ( , ), was a State (polity), state established in December 1922 under the Anglo-Irish Treaty of December 1921. The treaty ended the three-ye ...

, a state in Ireland which existed in the early part of the 20th century * Ifs, Calvados, a commune of the ''département'' of Calvados, in the Normandie ''région'', in France

Organisations

* ifs University College, a UK-based, non profit making body providing financial education * Indian Forest Service, an All India Service with the cadre controlling authority as Ministry of Environment, Forest and Climate Change * Indian Foreign Service * Institut für Sexualwissenschaft * Institute for Fiscal Studies, a UK-based independent economic research institute * Institutt for Forsvarsstudier, the Norwegian Institute for Defence Studies * Institut für Sozialforschung, the University of Frankfurt Institute for Social Research * International Foundation for Science * International French School Singapore * International Futures * International Sumo Federation * Internationale Filmschule Köln, a filmschool in Cologne, Germany * Islamic Foundation School

Science

* Integral field spectroscopy, a technique for astronomical observations * Isoflavonoid synthase, an enzyme

Technology

* Independent Front Suspension, an early type of front-end independent suspension on many passenger vehicles * Initial Flight Screening, flight screening used as a prerequisite for Air Force Flight School * Intelligent Front-lighting System is a technology to ensure the visibility of the driver on the road ahead without blinding oncoming drivers with the partial light control capability.

Other

* Internal Family Systems Model, a school of psychotherapy * International Financial Statistics, a database maintained by the International Monetary Fund * A retired US Navy hull classification symbol: Inshore fire support ship (IFS) {{disambig