Pterioidea is a superfamily of epifaunal marine bivalves mostly inhabiting continental shelf regions of tropical and subtropical oceans.

The superfamily includes the economically-important saltwater pearl oysters as well as the oddly shaped hammer oysters (neither of which, however, is considered a true oyster).

A number of species have found use as model organisms in the fields of medicine and science.

[1] It includes the following three accepted living families: Fossil families include:

This bivalve-related article is a stub.