"Yū" (優（ゆう）, lit. "Gentle") is a song recorded by Japanese singer Shizuka Kudo, released as a single through Pony Canyon on June 5, 1996. It featured as the theme song on the ninth and penultimate installment of the Gokudō no Onna-tachi Yakuza film series, Gokudō no Onna-tachi: Kiken na Kake (1996), starring Kudo herself. "Yū" is the third and last in a consecutive trilogy of singles with one-character titles: "Yū" is preceded by "Chō" and "7".