Sayaka Aoki (あおき さやか Aoki Sayaka), born Oct. 19, 1972, is a female seiyū and is affiliated with Production Baobab management. She is originally from Akita Prefecture. She sometimes uses Shizuka Aoki (青木 静香 Aoki Shizuka) for stage performances.
She has a very high voice and generally performs characters such as the title role in Cojicoji, but is well known for her portrayals of Lolita-style characters and heroines featured in Bishōjo games and in anime video games. She is the Japanese voice of Cream the Rabbit for the Sonic the Hedgehog series.