O Yun'gyŏm (1559–1636) was a Korean scholar-official and Chief State Councillor of the Joseon period.
[1] O Yun'gyŏm was the leader selected by the Gwanghaegun of Joseon to head a mission to Japan in 1617.
[2] The diplomatic mission functioned to the advantage of both the Japanese and the Koreans as a channel for developing a political foundation for trade.
[3] This delegation was explicitly identified by the Joseon court as a "Reply and Prisoner Repatriation Envoy" (회답겸쇄환사; 回答兼刷還使).
"[4] The Joseon monarch's ambassador and retinue traveled only as far as Kyoto, where the delegation was received by Shōgun Hidetada at Fushimi Castle.