The Wanyan (traditional Chinese: ๅฎ้ก; simplified Chinese: ๅฎ้ข; pinyin: Wรกnyรกn; Manchu: แ ธแ แ ฉแกคแกณแ ถแ แ จ Wanggiyan; Jurchen script:
), alternatively rendered as Wanggiya, was a clan of the Heishui Mohe tribe living in the drainage region of the Heilong River during the time of the Khitan-led Liao dynasty. Of the Heishui Mohe, the clan was counted by the Liao dynasty among the "uncivilized Jurchens" (็ๅฅณ็), indicating that the clan was not subject to the direct rule of the Liao emperors. Those Heishui Mohe clans ruled by the Liao dynasty were referred to as "civilized Jurchens" (็ๅฅณ็). The Wanyan clan later founded the Jin dynasty.