OF or Of or of may refer to:
Arts and media
- OF TV, a French television channel
- OnlyFans, an internet content subscription service
- Odd Future, an American hip-hop collective
- Operation Flashpoint, a video game series
Language
- of, an English preposition
- Old French, a medieval language
Organizations
- Air Finland, a defunct Finnish airline (IATA airline code OF)
- ', or the Civic Forum, a Czech political movement established during the Velvet Revolution in 1989
- ', the Liberation Front of the Slovene Nation, the main anti-fascist Slovene civil resistance and political organization active during World War II
Places
- Of, Turkey, a town and district in Trabzon Province
- Offenbach (district) and Offenbach am Main (German vehicle registration plates codes OF)
Post-nominals
- Officer of the Order of Fiji, which has the post-nominal letters of OF
- Old Fettesian, sometimes used as post-nominal letters to identify alumni of the British public school Fettes College, Edinburgh, Scotland
Science and technology
- Open Firmware, computer software which loads an operating system
- Oxygen monofluoride, a compound containing only the chemical elements oxygen and fluorine
Other uses
- Ordinary Form, in Roman Catholicism
- Outfielder, a defensive position in baseball
- Old Firm, a collective nickname for the Scottish football clubs Celtic and Rangers
See also
- Oxygen-free (disambiguation)