Athittayawong
| Athittayawong อาทิตยวงศ์ | |
|---|---|
| King of Ayutthaya | |
| King of Siam | |
| Reign | August 1629 – September 1629 (36 days) |
| Predecessor | Chetthathirat |
| Successor | Prasat Thong |
| House | Sukhothai |
| Father | Songtham |
Athittayawong (Thai: อาทิตยวงศ์, Ādityavaṅśa) was the shortest-reigning monarch of Ayutthaya, ruling for about 36 days in 1629 and often regarded as the last king of the Sukhothai dynasty.
Prince Athittayawong was a son of King Songtham. In 1629, following a coup led by Okya Siworawong (Thai: ออกญาศรีวรวงศ์), Athittayawong was removed from the throne, paving the way for Prasat Thong's accession.