Illuyankas

In Hittite mythology, Illuyanka was a serpentine dragon slain by Tarhunt , the Hittite incarnation of the Hurrian god of sky and storm. It is known from Hittite cuneiform tablets found at Çorum-Boğazköy, the former Hittite capital Hattusha. The context is a ritual of the Hattian spring festival of Puruli.
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[Other] A great dragon from Hittite mythology. The creature and its brood were given large quantities of wine and other liquor by the hero Hupasiays to make them fall asleep, and were subsequently killed by the thunder-god with his lightning.