Cho Son-jin
| Personal information | |
|---|---|
| Native name |
|
| Full name | Cho Sonjin |
| Born | April 18, 1970 |
| Sport | |
| Turned pro | 1984 |
| Teacher | Takeo Ando |
| Rank | 9 dan |
| Affiliation | Nihon Ki-in |
Cho Sonjin (Korean: 조선진; born April 18, 1970) is a professional Go player.
Cho was born in South Korea, but moved to Japan at age 12 in order to become a professional. He accomplished his goal two years later in 1984. He was promoted to 9 dan in 1998. In 1999, he defeated Cho Chikun in the Honinbo, ending Chikun's 10-year run with the title.