Hon'inbō Jōsaku
| Personal information | |
|---|---|
| Full name | Honinbo Josaku |
| Born | 1801 Japan |
| Died | 1847 (aged 45–46) Japan |
| Sport | |
Hon'inbō Jōsaku (本因坊丈策, 1803–1847) was a Japanese professional go player and the thirteenth head of the Hon'inbō school. He was not in the same top-rank class over the board as either his predecessor Jōwa or his successor Shūwa.