Aetostreon is an extinct genus or subgenus within the genus Exogyra of fossil marine oysters in the family Gryphaeidae.

Select species †Aetostreon latissimum (Lamarck, 1801) †Aetostreon pilmatuegrossum Rubilar & Lazo, 2009  †Aetostreon subsinuatum (Leymerie 1842)

References