A halite, also known as a halogenite, is an oxyanion containing a halogen in a +3 oxidation state. It is the conjugate base of a halous acid. The known halites are chlorite, bromite, and iodite.

Halites can be used to generate the respective halogen dioxides via a one-electron oxidation:

This reaction in particular is used in bleach to generate chlorine dioxide.

Chlorites tend to decompose rapidly, some even explosively, upon heating. A few bromites have been isolated, but no iodites have.