Thadominbya (1345 – 1367) is the founder of the Kingdom of Ava who reunifies central Burma in 1364 under a single kingdom.

In his short reign of three plus years, the ethnically Shan king achieves accomplishments that will have a long-lasting impact in Burmese history.

In addition to politically reunifying central Burma, which had been split into Sagaing and Pinya kingdoms since 1315, he founds a new capital city of Ava (Inwa) at a strategic locale by the Irrawaddy river that will remain the country's capital for another five centuries; reintroduces law and order; and tries to stamp out corrupt Buddhist clergy.

Thadominbya dies of small pox while on a southern military expedition in September 1367.

He is only twenty-one, and has no children.