Hatzegopteryx ("Hațeg basin wing") is a genus of azhdarchid pterosaur. It was found in Transylvania, Romania. It is known only from the type species, Hatzegopteryx thambema, named in 2002 based on parts of the skull and humerus. Additional fossils, including a neck vertebra, were included later. The largest of these remains shows that the Hatzegopteryx was one of the biggest pterosaurs, with an estimated wingspan of .