Nitrous oxide is a colorless, non-flammable gas, commonly known as laughing gas.

Nitrous oxide may also refer to:

• Nitrous oxide (medication)
• Nitrous oxide fuel blend, a class of liquid rocket propellants
• N2O: Nitrous Oxide, a video game

• Nitros Oxide, character in Crash Bandicoot
• Nitrous oxide engine, an internal combustion engine

This disambiguation page lists articles associated with the title Nitrous oxide.
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