The powerful goshawk (''Accipiter efficax''), also referred to as the greater New Caledonian goshawk, is an extinct species of bird of prey in the family Accipitridae. It was Endemism, endemic to the island of New Caledonia in Melanesia in the southwest Pacific Ocean, Pacific region. It was described from subfossil bones found at the Pindai Caves palaeontology, paleontological site on the west coast of Grande Terre (New Caledonia), Grande Terre. The Latin specific epithet ''efficax'' means "powerful".

References

{{Taxonbar, from=Q339143 Accipiter Extinct birds of New Caledonia Holocene extinctions Birds described in 1989 Taxa named by Jean-Christophe Balouet Late Quaternary prehistoric birds