由紀, 由貴, 由岐, 由樹, 友紀, 夕希 and 有希. Possible spellings of Yūki include 勇気, 有機, 祐樹, 雄輝 and 雄樹. Yuki Baba (馬場雄基, born 1992), Japanese politician Yuki Ebihara...