Yuu Wakui (和久井 優, Wakui Yū, January 24, 1995) is a Japanese voice actress and actress from Tochigi Prefecture. She is 166 cm tall. She is affiliated with Sunaoka office (Himawari Theater Group). She made her debut as a voice actress in the role of Sumire Hikami in the TV anime Aikatsu! She announced on September 18, 2018 that she had joined Sunaoka office.