The bisphenols (/ˈbɪsfɪnɒl/) are a group of industrial chemical compounds related to diphenylmethane; commonly used in the production of plastics and epoxy resins. They feature two hydroxyphenyl groups linked by a methylene bridge. Also included are bisphenol S, P, and M. "Bisphenol" is a common name; the letter following denotes the variant, which depends on the additional substituents. Bisphenol A is the most common representative of the group, with millions of metric tons produced globally in the past decade, often simply called "bisphenol".

Bisphenols have attracted controversy because of their role as endocrine disruptors.

Bisphenols A (BPA), F (BPF) and S (BPS) have been shown to be endocrine disruptors, potentially relating to adverse health effects. Due to its high production volumes, BPA has been characterised as a "pseudo-persistent" chemical, leading to its spreading and potential accumulation in a variety of environmental matrices, even though it has a fairly short half-life.