| Mingyi Swa မင်းကြီးစွာ | |
|---|---|
| Viceroy of Toungoo | |
| Heir Apparent of Burma | |
| Reign | 15 October 1581 – 8 January [O.S. 29 December 1592] 1593 |
| Predecessor | Nanda |
| Successor | Minye Kyawswa II |
| Born | 27 November 1558 Sunday, 2nd waning of Nadaw 920 ME Pegu (Bago), Toungoo Empire |
| Died | 8 January [O.S. 29 December 1592] 1593 (aged 34) Friday, 8th waxing of Tabodwe 954 ME Suphan Buri, Siam |
| Burial | February 1593 Tabaung 954 ME |
| Spouse | Natshin Medaw (divorced 1586) Yaza Datu Kalaya (1586–1593) |
| House | Taungoo |
| Father | Nanda |
| Mother | Hanthawaddy Mibaya |
| Religion | Theravada Buddhism |
Mingyi Swa (Burmese: မင်းကြီးစွာ, pronounced [mɪ́ɴdʑí swà] or [mɪ́ɴdʑí zwà]; 27 November 1558 – 8 January [O.S. 29 December 1592] 1593) was heir apparent of Burma from 1581 to 1593. The eldest son of King Nanda of the Toungoo Dynasty led three out of the five Burmese invasions of Siam between 1584 and 1593, all of which ended in complete failure. He died in action during the fifth invasion in 1593. In prevailing Thai history, he was killed in single combat by King Naresuan. However no other accounts, including the earliest Siamese records and European accounts, mention a formal elephant duel between the two. The Burmese chronicles say Swa was felled by a Siamese mortar round.