Yūki Tamaki (環有希, Tamaki Yūki, born February 10, 1980), also known by the stage name Yukiko Tamaki (玉木有紀子, Tamaki Yukiko), is a Japanese voice actress who was born in Chiba, Japan. She is part of ToriTori office.

• Beet the Vandel Buster as Zeke
• Coyote Ragtime Show as May
• Digimon Tamers as Hirokazu Shiota
• Hunter × Hunter (1999) as Pokkle
• Konjiki no Gash Bell!! as Nicholas
• Onegai My Melody as Cat News
• Super GALS! Kotobuki Ran as Clerk (ep 26); Instructor (eps 7-8); Tan Face Red
• Transformers: Cybertron as Coby
• Transformers: Car Robots as Build Boy
• Demashita! Powerpuff Girls Z as Butch
• Ojamajo Doremi as Kenta Iizuka

• Home page^{[permanent dead link‍]} (in Japanese)
• Yukiko Tamaki at Anime News Network's encyclopedia
• Yukiko Tamaki at IMDb