Ashina Tuwu () was an early Göktürks chief and ancestor of their khagans. Besides carrying title of Da Yehu (大èÂÂè· Grand Yabgu), little else is known about him. He would be succeeded by his oldest son Bumin, who together with his younger brother Istämi founded the Gokturk Khaganate.
His Turkic birth name is unknown (Tuwu being a Chinese translation of his birth name), however, according to Bayanchur Inscriptions erected by Uyghurs nearly 2 centuries later, describe Bumin Qaghan as the successor of a certain "Yollyg Qaghan" as the leader of Ashina tribe. This implies the fact that Bumin is a son of Yollyg, which makes Yollyg identical to Tuwu, however lack of researches by scholars and historians causes an obscurity in the connection between Yollyg and Tuwu, and thus the identity of Yollyg remains unknown.