| Honinbō Genjō | |
| Fullname: | Honinbō Genjō |
| Kanji: | 本因坊元丈 |
| Birth Date: | 1775 |
| Birth Place: | Japan |
| Death Date: | 1832 |
| Death Place: | Japan |
| Rank: | 8 dan |
Honinbō Genjō (本因坊元丈; 1775–1832) was a professional Go player.
Genjō was the eleventh Hon'inbō. His rival and great friend was Yasui Chitoku, who had advanced to 8 dan at the same time as Genjō. Both were at the level of Meijin strength, but their respect for each other was so great, neither took the Meijin post, since there could only be one Meijin.