Yuka Nishigaki (西墻 由香, Nishigaki Yuka) is a Japanese voice actress, stage actress and narrator affiliated with Ken Production. She is married to fellow voice talent Tsubasa Yonaga (代永 翼). She belongs to Ken Production.

Representative works include Mobile Suit Gundam 00 (as Diet Member, French Assembly Member, Young Setsuna), Inazuma Eleven (as Ichirōta Kazemaru), Stitch! (as Kōji), Guilty Crown (as Yū), and Sasami: Magical Girls Club (as Toshihiko Saruta).