Yuuki may refer to:
- Konno Yuuki, the second leader of the Sleeping Knights.
- Yuuki Asuna, the main heroine of the series and the sub-leader of the Knights of the Blood in Sword Art Online.
- Yuuki Kouichirou, Asuna's brother and Shouzou and Kyouko's only son.
- Yuuki Kyouko, Asuna and Kouichirou's mother and Shouzou's wife.
- Yuuki Shouzou, Asuna and Kouichirou's father and Former CEO of RECTO Progress Inc..