Yūki clan (結城氏, Yūki-shi) is a Japanese samurai kin group.

[1] The Yūki claim descent from Fujiwara no Hidesato.

Like many samurai clans, the Yūki developed a code of provincial laws (bunkoku-hō).

[3] The Shirakawa branch was destroyed by Toyotomi Hideyoshi;[2] but the Shimōsa branch survived as daimyōs of Yūki Domain in Shimōsa Province.

The Shimōsa Yūki became part of the Tokugawa clan.