| Yasuo Koyama | |
|---|---|
| Full name | Yasuo Koyama |
| Kanji | 小山靖男 |
| Born | April 27, 1937 Japan |
| Died | 2000 |
| Rank | 9 dan |
Yasuo Koyama (小山靖男 Koyama Yasuo, April 27, 1937 - 2000) was a professional Go player.
Koyama became a 9 dan in 1971. He played in the Kansai Ki-in. His disciple was Yahata Koichi.
| Title | Years Held |
|---|---|
| Current | 1 |
| Kansai Ki-in Championship | 1962 |