OSF may refer to:

Computing

* Open Science Framework, a cloud-based management for open access science *

Open Semantic Framework The Open Semantic Framework (OSF) is an integrated software stack using semantic technologies for knowledge management. It has a layered architecture that combines existing open source software with additional open source components developed s ...

, an integrated software stack using semantic technologies for knowledge management *

OSF/1 OSF/1 is a variant of the Unix operating system developed by the Open Software Foundation during the late 1980s and early 1990s. OSF/1 is one of the first operating systems to have used the Mach kernel developed at Carnegie Mellon University, and ...

, a Unix-like operating system developed by the Open Software Foundation *

Opera Show Format The Opera Show Format (OSF) is a set of conventions used in a web page using XHTML 1.0 Strict and CSS 2.1. It is designed to allow presentations to be easily created with web authoring tools. OSF requires that a number of meta tags be present, incl ...

, an XHTML-based slideshow format

Organisations

* Ógra Shinn Féin, the youth wing of the Sinn Féin political party * Open Software Foundation, a not-for-profit organization that merged with X/Open and then became The Open Group *

Open Society Foundations Open Society Foundations (OSF), formerly the Open Society Institute, is a Grant (money), grantmaking network founded and chaired by business magnate George Soros. Open Society Foundations financially supports civil society groups around the wo ...

, a grantmaking body established by George Soros * OpenStack Foundation, a non-profit corporate entity to promote OpenStack software and its community *

Operational Support Facility The Federal Aviation Administration (FAA) is the largest transportation agency of the U.S. government and regulates all aspects of civil aviation in the country as well as over surrounding international waters. Its powers include air traffic ...

, of the Federal Aviation Administration * Oregon Shakespeare Festival, a repertory theatre in Ashland, Oregon, US * Oxford Scientific Films, a British producer of natural history and documentary programmes *

The Old Spaghetti Factory The Old Spaghetti Factory is an Italian-American-style chain restaurant in the United States and Canada. The U.S. restaurants are owned by OSF International, based in Portland, Oregon, while the Canadian restaurants are owned by The Old Spaghetti ...

, a restaurant chain *

Independent Senate Fraction The Independent Politics Netherlands ( nl, Onafhankelijke Politiek Nederland, OPNL) formerly known as the Independent Senate Group (Onafhankelijke Senaatsfractie) is a political party in the Dutch Senate with one senator, representing several p ...

(''Onafhankelijke Senaatsfractie''), a political group of the Netherlands * Order of Saint Francis, a 21st-century American Franciscan religious order * Oklahoma Office of State Finance, an agency of the Government of Oklahoma, US * OSF Global Services, a cloud technology company * OSF Healthcare, a non-profit healthcare organization in Illinois and Michigan, US {{Disambiguation