Ernak was the last known ruler of the Huns, and the third 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 Huns in dual kingship with his brother Dengizich, but in separate divisions in separate lands. Priscus, during his stay at Attila's court in 448 or 449 AD, recorded a personal occasion between Attila and Ernak. At a banquet Attila looked on him with serene eyes, while taking small account of his other sons. He was Attila's favorite son, because as a certain Hun explained to him, the Hunnic prophets prophesied his genos would fail, but would be restored by this son. Ernak has often been identified with Irnik from the Nominalia of the Bulgarian khans, who is noted as a descendant of the Dulo clan and leader of the Bulgars for 150 years, starting approximately from 437 AD. Etymology The name is recorded in two, possibly three variants, Ήρνάχ (Ernakh) by Priscus, and Hernac by Jordanes in Getica, and possibly Ирникъ (Irnik) in Nominalia of the Bulgarian khans. Otto J. Maenchen-Helfen discounted this last connection, arguing that the name is just as similar to the Armenian Arnak, a figure living at the same time as Ernak, as it is to Irnik. Nicholas Poppe argued that the name originally had h- in initial position (er < här, her).

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Ernak was the last known ruler of the Huns, and the third 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 Huns in dual kingship with his brother Dengizich, but in separate divisions in separate lands.