The binomial name Hadongsuchus acerdentis refers to the skull remain of an extinct "protosuchian" crocodyliform from the Hasandong Formation of Hadong, South Korea.

[1] Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.

Like other protosuchians, it is believed to have been a fully terrestrial cursorial animal with a semi-erect posture.

The binomial name of the type species H. acerdentis means "sharp-toothed crocodile from Hadong" in Greek.

[5] Lee (2005) suggested Hadongsuchus, Shantungosuchus, Sichuanosuchus, and Zosuchus comprise a new family which represents a sister taxa to the Protosuchidae.