Other
- Nitro, former name of Giant, Richmond, California
- Dodge Nitro
- Nitro, West Virginia, United States
- Nitro (wireless networking), Conexant's proprietary enhancements to IEEE 802.11g wireless LAN performance
- Nitro (web framework), a web development library for the Ruby language
- Nitro, a marketing name given by Apple to the JavaScript engine of Webkit. It is also known as JavaScriptCore or SquirrelFish (see JavaScript_engine#Safari)
- Nitro Express (NE), a series of cartridges used in large-bore hunting rifles
- Nitro Swimming, a swim team from Cedar Park, Texas
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