| King Jobun 조분 이사금 助賁尼師今 | |
| Isageum | |
| Succession: | Ruler of Silla |
| Reign: | 230-247 |
| Coronation: | 230 |
| Predecessor: | Naehae of Silla |
| Successor: | Cheomhae of Silla |
| Father: | Seok Goljeong |
| Mother: | Queen Ongmo |
| Birth Date: | ??? |
| Death Date: | 247 |
| Death Place: | Silla |
| Posthumous Name: | King Jobun (조분 이사금, 助賁尼師今) |
| Hangul: | 조분 이사금 |
| Hanja: | 助賁尼師今 |
| Rr: | Jobun Isageum |
| Mr: | Chobun Isagŭm |
Jobun of Silla (r. 230–247, died 247), also known by his title Jobun Isageum, was the eleventh king of the Korean state of Silla.[1] He was the grandson of Beolhyu Isageum, and a member of the Seok clan. He was the son of Goljeong with Lady Ongmo, a daughter of Kim Gudo. Lady Ongmo's brother was Michu Isageum.
The Samguk Sagi also reports that the small country of Gammun-guk (near present-day Gimcheon) was conquered by Jobun's general Uro in 231.[2] Japanese forces attacked the capital but Jobun Isageum wins against the Japanese in 232. Golbeol-guk (near present-day Yeongcheon) surrendered in 236. Baekje attacked the western frontier of Silla in 239. Clashes with Goguryeo and Wa took place during Jobun's reign.