Zoanthus is a genus of anthozoans in the family Zoanthidae.

It is the type genus for its family and order.

The following species are recognized in the genus Zoanthus:[1] Zoanthids are prized in the aquarium hobby, being relatively easy to raise and very colorful.

Known as "button polyps" or "zoas" they can spread to completely cover a rock with brightly colored circular patterns.

This Hexacorallia related article is a stub.