A vapor is a substance in the gas phase below its critical temperature.

Look up vapor or vapour in Wiktionary, the free dictionary.

Vapor, vapors, vapour or vapours may also refer to:

• VAPOR (software), a visualization tool used in geosciences
• Vapor (web framework), an open-source web framework written in Swift
• Vapour Col, South Shetland Islands, Antarctica
• Vapours (disease), an archaic term for certain mental and/or physical illnesses
• Electronic cigarette vapor

• Vaper, a user of electronic cigarettes
• Vapor Trail (disambiguation)
• Vaporware, a term in the computer industry

This disambiguation page lists articles associated with the title Vapor.
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