Haze is traditionally an atmospheric phenomenon where dust, smoke and other dry particles obscure the clarity of the sky. The World Meteorological Organization manual of codes includes a classification of horizontal obscuration into categories of fog, ice fog, steam fog, mist, haze, smoke, volcanic ash, dust, sand and snow. Sources for haze particles include farming (ploughing in dry weather), traffic, industry, and wildfires.

Haze is a first-person shooter video game developed by Free Radical Design and published by Ubisoft for the PlayStation 3. It was released worldwide in May 2008. Releases for Xbox 360 and Microsoft Windows were canceled. The game takes place in a dystopian future, where the Mantel Corporation rule the world with a drug called Nova-Keto-Thyrazine - also called Nectar, a "nutritional supplement" that enables soldiers to fight harder and smarter, but also induces a hallucinogenic effect, where soldiers are no longer cognizant of the real battlefield around them, instead viewing an idyllic, painless environment.