Dioxin may refer to:
- Dioxins and dioxin-like compounds, a diverse range of chemical compounds which are known to exhibit “dioxin-like” toxicity
- 2,3,7,8-Tetrachlorodibenzodioxin (TCDD), the prototypical example of the above class, often referred to simply as "dioxin"
In chemistry, a dioxin is a heterocyclic 6-membered ring, where two carbon atoms have been replaced by oxygen atoms:
- Dioxin affair, a 1999 crisis in Belgium
- Agent orange, of which TCDD is a marginal component
| This set index page lists chemical compounds articles associated with the same name.
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