| Saw O စောအို | |
|---|---|
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| King of Martaban | |
| Reign | 10 April 1311 – September 1323 |
| Predecessor | Hkun Law |
| Successor | Saw Zein |
| Born | 1284 646 ME Tagaw Wun Pagan Empire |
| Died | September 1323 (aged 39) Thadingyut 685 ME Martaban (Mottama) Martaban Kingdom |
| Consort | May Hnin Htapi |
| Issue Detail | Saw E May Hnin Aw-Kanya |
| House | Wareru |
| Father | Min Bala |
| Mother | Hnin U Yaing |
| Religion | Theravada Buddhism |
Saw O (Burmese: စောအို, pronounced [sɔ́ ʔò]; also known as Saw Aw (စောအော, [sɔ́ ʔɔ́]); 1284–1323) was king of Martaban from 1311 to 1323. He transformed Martaban into a truly independent kingdom by successfully breaking with its hitherto nominal overlord Sukhothai.
He was put on the throne by his parents Gov. Min Bala of Myaungmya and Princess Hnin U Yaing, who had staged a coup against King Hkun Law. O emerged only after his father's death in the mid-to-late 1310s. He successfully broke with Sukhothai in 1317/18, and went on to capture Lamphun and the Tenasserim coast by 1321.