Other
- Oz (programming language)
- Oz Academy, women's professional wrestling promotion
- OZ Group, an Italian wheel manufacturer
- OZ Virtual, a 3D world viewer
- OZ Minerals, an Australian mining company
- Ornstein–Zernike equation, in statistical mechanics
- Asiana Airlines (IATA code OZ)
- Congregation Ohab Zedek, a Manhattan synagogue
- Circus Oz, an Australian circus group
- .oz, a former MHSnet domain
- OZ, an abbreviation for Operating Zone
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