Cerastis fishii is a moth of the Noctuidae family. It is found in eastern North America from Newfoundland to southern Ontario in Canada. In the United States it is found from Maine west to Ohio, Michigan, and northern Wisconsin, then south to North Carolina. Recently it has also been recorded from Tennessee. The wingspan is 30–36 mm. Adults are on wing from March to June. The larvae feed on the flowers and the leaves of blueberry.