Australia, Oz (from "Australia") a colloquial term for the nation

The Wonderful Wizard of Oz, a children's story written by L. Frank Baum

Amos Oz, an Israeli author

Land of Oz, the fictional empire in the Oz books

Ozzy Osbourne, a Rock star, television personality, and pop culture icon

The Oz books, the series that stemmed from The Wonderful Wizard of Oz

Kevin "Oz" Nash, a professional wrestler

Oz (TV series), (from "Oswald") the title of a TV show on HBO set in a prison called "The Oswald State Correctional Facility"

Oz (magazine), a satirical magazine published in Australia and Britain in the late 1960s and early 1970s

Oz, the Oz. of Prevention System, a CMMS, Computerized Maintenance Management System, developed by Ounce of Prevention Software, a Division of Aviar, Inc.

OZ (Ultimate Marvel), the artificial mutagen responsible for the Spider-Man of the Ultimate Imprint, along with many other characters.

Wizard (Oz), the title character

Wizard of Oz experiment, a technique for doing user-centered design or usability evaluations of software applications

The Wizard of Oz, the title of various works derived from the books

Frank Oz, (Richard Frank Oznowicz) a film director, actor and puppeteer noted for his work on the Muppets and Yoda

Asiana Airlines, "OZ" is an abbreviation for the airline from the IATA standards body

Oz (programming language), a multi-paradigm computer programming language

Oz (Judge Dredd story), a Judge Dredd storyline in the UK comic, 2000 AD

The Boy from Oz, jukebox musical loosely based on the life of singer/songwriter Peter Allen

Mehmet Oz, a Turkish American cardiothoracic surgeon

ounce, "oz" being an abbreviation for the unit of measure

Oz (1976 film), a modern adaptation the Wizard of Oz

Circus Oz founded in Australia in 1978

Ornstein-Zernike equation (OZ-equation), a statistical mechanical integral equation

OpenZaurus, "OZ" is an abbreviation for a Linux distribution

Oz Factor (album), an album by American punk rock band Unwritten Law

Oz (band), a band

An abbreviation for the name Osbourne

Congregation Ohab Zedek, "OZ" is an abbreviation for a Orthodox Jewish synagogue in Manhattan, New York City

World of Oz, a psychedelic pop band

OZ - Over Zenith, a PS2 game from Konami, released in Europe as The Sword of Etheria

Organization of the Zodiac, an organization in the anime series Mobile Suit Gundam Wing; usually abbreviated as OZ

Daniel "Oz" Osbourne, a fictional character in Buffy the Vampire Slayer

Oz - A fictional character in the anime and manga One Piece.

Chris "Oz" Ostreicher - character played by Chris Klein in the movies American Pie and American Pie 2.

Oz, Isère, a commune in the Isère département in France