Arnuwanda III was the penultimate king of the Hittite empire (New Kingdom) c. 1215–1210 BC (middle chronology)[1] or c. 1209–1207 BC (short chronology).
Arnuwanda was a son of Tudhaliya IV and grandson of Hattusili III and Puduhepa. He was quickly succeeded by his brother Suppiluliuma II.