Sithu of Pinya
| Sithu စည်သူ | |
|---|---|
| Regent of Pinya | |
| Reign | 1 September 1340 – 29 March 1344 |
| Predecessor | Uzana I of Pinya |
| Successor | Kyawswa I |
| Viceroy of Myinsaing | |
| Reign | c. 1312/13 – 29 March 1344 |
| Predecessor | Yazathingyan |
| Successor | Shwe Nan Shin |
| Born | c. early 1280s Pagan (Bagan) |
| Died | 1344 Pinya |
| Consort | Saw Htut |
| Issue | Saw Gyi (daughter) Saw Einthe (daughter) |
| House | Myinsaing |
| Father | Narathihapate |
| Mother | Shin Shwe |
| Religion | Theravada Buddhism |
Sithu of Pinya (Burmese: စည်သူ, [sìðù]; also known as Myinsaing Sithu) was regent of Pinya from 1340 to 1344. He is not mentioned in any of the royal chronicles. He only appears in a Pinya era inscription as "King" Myinsaing Sithu. Sithu, who according to the inscription succeeded Uzana I, may have been a caretaker for his nephew and son-in-law Kyawswa I of Pinya. Sithu's elder daughter Saw Gyi was married to Kyawswa I. At least one contemporary inscription donated by Kyawswa I's chief consort on 17 June 1342 disputes Sithu's claim, saying that Kyawswa I was already king.
The king was likely Kyawswa I's maternal uncle since Kyawswa I's father Thihathu had only two brothers, Athinkhaya and Yazathingyan, both of whom had already died.