Arinna was the major cult center of the Hittite sun-goddess known as <sup>d</sup>UTU <sup>URU</sup>Arinna or "Sun-Goddess of Arinna", who is also sometimes identified as Arinniti or as Wuru(n)à ¡emu. Arinna was located near Hattusa, the Hittite capital.
The Sun-Goddess of Arinna is the most important one of three important solar deities of the Hittite pantheon, besides <sup>d</sup>UTU nepisas 'the sun of the sky' and <sup>d</sup>UTU taknas 'the sun of the earth'.
She was considered to be the chief deity in some sources, in place of her husband. Her consort was the Storm-God; they and their children were all derived from the former Hattic pantheon.
The goddess was also perceived to be a paramount chthonic or earth goddess. She becomes largely syncretised with the Hurrian goddess Hebat, as the Hittite Storm-God was with Teshub.
In the late 14th century BC, King Mursili II was particularly devoted to the Sun-Goddess of Arinna.
Karaà Âehir Hüyük has been suggested as the site of Arinna.