Onjo of Baekje
| King Onjo | |
|---|---|
| Eoraha | |
| Portrait of King Onjo | |
| King of Baekje | |
| Reign | 18 BC - 28 AD | 
| Coronation | 18 BC | 
| Predecessor | The founder of the kingdom | 
| Successor | Daru | 
| Born | Buyeo Onjo/Eunjo 36 BC (Estimated) Buyeo | 
| Died | 28 AD Wiryeseong | 
| Issue | Buyeo Daru Buyeo Deokjwa | 
| House | Buyeo | 
| Dynasty | Baekje | 
| Father | Wutae or Dongmyeong | 
| Mother | Soseono | 
| Onjo of Baekje | |
| Hangul | 온조 어라하 | 
|---|---|
| Hanja | |
| Revised Romanization | Onjo Eoraha | 
| McCune–Reischauer | Onjo Ŏraha | 
| Monarchs of Korea | 
| Baekje | 
|---|
| 
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Onjo (?–28, reigned c. 18 BC – AD 28) was the founding monarch of Baekje, one of the Three Kingdoms of Korea. According to the Samguk sagi, he founded the royal family of Baekje.