Dengizich (died in 469), was a Hunnic ruler and son of Attila. After Attila's death in 453 AD, his Empire crumbled and its remains were ruled by his three sons, Ellac, Dengizich and Ernak. He succeeded his older brother Ellac in 454 AD, and probably ruled simultaneously over the Huns in dual kingship with brother his Ernak, but separate divisions in separate lands.
The oldest brother Ellac died in 454 AD, at the Battle of Nedao.Jordanes recorded "When Ellac was slain, his remaining brothers were put to fight near the shore of the Sea of Pontus where we have said the Goths settled ... dwelling again in their ancient abodes". Jordanes recounts events in c. 454-455:
"[After the Ostrogoths led by their king Valamir, and his brothers Theodemir and Vidimir received Pannonia] Now it happened that the sons of Attila, regarding the Goths as deserters from their rule, came against them as though they were seeking fugitive slaves and attacked Valamir alone, when his brothers knew nothing of it. He sustained their attack, though he had but few with him, and after harassing them a long time, so utterly overwhelmed them that scarcely a portion of the enemy remained. The remnant turned in flight and sought the parts of Scythia which border on the stream of the river Danaber, which the Huns call in their own tongue Var. Whereupon he sent a messenger of good tidings to his brother Theodemir ... on the very day the messenger arrived ... Theoderic was born [in 454]".
Priscus recorded that in 465-466, Dengizich and his brother Ernak sent diplomats to Constantinople. They wanted a peace treaty, and a market place on Danube according to the ancient customs between Romans and Huns, but were rejected. Then Dengizich on his own moved to the bank of the Istros (lower Danube) and threatened to break into Thrace unless is granted with lands and subsidies. He looked down the negotiations with Anagast (who defended the Danube in Thrace), and sent diplomats directly to the emperor Leo I. However, Leo I replied that "he was ready to do everything if they came to him and offered him obedience. He took pleasure, he said, in nations which came seeking alliances".