O3
From Wikipedia, the free encyclopedia
See also: 03 (disambiguation)
O3 may refer to:
- O3, the molecular formula for ozone
- O3, the 1993 debut album by the techno band Sunscreem
- O3: A Trilogy, a concept album trilogy by progressive metal band Dominici
- o3 Magazine, a monthly, free-content e-zine about free software and open source
- O3 star, in stellar classification, a subclass of type O stars
- O-3, a U.S. uniformed services pay grade for captains or lieutenants
- O3 Entertainment, a video game publisher
- Haplogroup O3 (Y-DNA), a Y-DNA Haplogroup
- Oldershaw O-3, glider
- SP&S Class O-3, a steam locomotives class
- USS O-3 (SS-64), a United States O class submarine
- Otoyol 3, a Turkish highway from Edirne to Istanbul
- Oskarshamn 3, unit 3 at Oskarshamn Nuclear Power Plant in Sweden
- o3 One on One
- O3, the Raleigh Web Design & Development Company
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