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
  • 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

  • Irish Free State, 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

Government

  • Indian Foreign Service, Diplomatic Service of the Government of India
  • Indian Forest Service, All India Services of the Government of India

Organisations

  • ifs University College, a UK-based, non profit making body providing financial education
  • 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<!--IFS from https://www.ifs.edu.sg/ -->
  • 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
  • Integrated Forecast System a global meteorological model developed by European Centre for Medium-Range Weather Forecasts
  • 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)