Look up of in Wiktionary, the free dictionary.

Of or OF may refer to:

• Of, Turkey, a town and district in Trabzon, Turkey
• Oxygen fluoride
• Air Finland (IATA airline designator)
• Old Firm, Glasgow-based association football clubs Celtic F.C. and Rangers F.C.
• Old French
• Osvobodilna fronta ("Liberation Front" in Slovene)
• Civic Forum (Občanské fórum in Czech), a former Czech political movement
• OpenFirmware, a computer software which loads an operating system
• Old Fettesian: sometimes used as post-nominal letters to identify alumni of the British public school Fettes College, Edinburgh, Scotland
• OFWGKTA aka Odd Future (or just OF), full name Odd Future Wolf Gang Kill Them All, a Los Angeles based hip-hop collective
• OpenFeint, a social gaming network for iOS (Apple) and Android
• Operation Flashpoint, a video game series
• Old Fashioned, a drink

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