Chaiyasiri
| Chaiyasiri | |
|---|---|
| King of Singhanavati at Fang | |
| Reign | 438–444 |
| Predecessor | Phrom |
| Successor | City abandoned |
| King of Kamphaeng Phet | |
| Reign | 444–457 |
| Predecessor | City founded |
| Successor | Unknown (The region next became known as Duō Miè in the 6th century) |
| Born | 390 Wiang Kum Kam |
| Died | 457 Kamphaeng Phet |
| House | Singhanavati |
| Father | Phrom |
Chaiyasiri (Thai: ไชยศิริ) was a ruler of the Singhanavati City-State Kingdom in Thailand, prior to the Sukhothai Period.