| Ishadō Seigen | |
| Native Name: | 伊舎堂 盛元 |
| Native Name Lang: | ja |
| Office: | sanshikan of Ryukyu |
| Term Start: | 1821 |
| Term End: | 1828 |
| Predecessor: | Yonabaru Ryōō |
| Successor: | Yonabaru Ryōkō |
| Birth Date: | 13 March 1776 |
| Blank1: | Childhood name |
| Blank2: | Chinese name |
| Data2: | Ō Kōretsu (翁 宏烈) |
| Blank3: | Rank |
| Data3: | Ueekata |
, also known as his Chinese style name, was a bureaucrat of the Ryukyu Kingdom.[1]
Ishadō served as a member of Sanshikan from 1821 to 1828.[1] [2] He was also known by good at writing waka poetry, and was designated as a member of the .[1]