Osireion
| Location | Abydos, Egypt | 
|---|---|
| Coordinates | 26°11′03″N 31°55′06″E / 26.1841°N 31.9184°E | 
| Type | Cenotaph | 
| History | |
| Builder | Seti I | 
| Founded | 13th century BCE 19th dynasty of Egypt | 
The Osireion (or Osirion) is believed to be the cenotaph of Seti I, located to the rear of the Temple of Seti I at Abydos, Egypt. The temple was built in the 13th century BC and many researchers believe the Osireion dates from the same period. Seti I ruled from c. 1294 BCE to c. 1279 BCE.