Hnin U Yaing

Hnin U Yaing (c. 1260s – 1310s) was a princess of Martaban, younger sister of the kingdom's founder Wareru. In 1285 her brother used her to lure Governor Aleimma: the governor fell in love with her and was killed at their wedding feast, letting Wareru seize Martaban.

She married Min Bala, whom Wareru made governor of Myaungmya, and joined her husband in the March 1311 coup against her brother Hkun Law. Bala's troops killed Law after he returned from a hunting trip and found the capital's gates shut.

She then stopped Bala from taking the crown himself, insisting that their eldest son Saw O be made king; her sons Saw O and Saw Zein both later reigned.