|sanshikan of Ryukyu|
|Preceded by||Ie Chōan|
|Succeeded by||Kanegusuku Chōten|
|Born||March 23, 1781|
|Died||October 25, 1837(aged 56)|
|Chinese name||Mō Shikkō (毛 執功)|
Seichin was born to an aristocrat family, Mō-uji Zakimi Dunchi (毛氏座喜味殿内), and he was also the seventh head of this family. In 1807, he was granted Yuntanza magiri (読谷山間切, modern Yomitan) as his hereditary fief.
Seichin was dispatched as nentōshi (年頭使), a mission sent to Kagoshima each year to convey formal New Year's greetings to daimyō of Satsuma, in 1826. He served as a member of sanshikan from 1826 to 1836.