Oz has several meanings:
- Oz the fictional place in the The Wonderful Wizard of Oz
- "Oz" is also a jocular term for Australia. (OZ-tralia).
- Oz is also the title of a TV show on HBO set in a fictional American prison.
- Oz is also the name of a Computer Programming Language that supports multiple "paradigms"
- Oz is the name of a satirical and irreverent magazine publishing in Britain in the late 1960s
- oz. is an abbreviation for 'ounce' (from Italian 'onza')
- Oz was the the title of a major 1987 Judge Dredd storyline in the UK comic 2000 A.D