Yui Koike (小池 唯, Koike Yui, born April 4, 1991) is a Japanese actress and former gravure idol.
She is known for her role as Ahim de Famille/Gokai Pink in the 2011 Super Sentai series Kaizoku Sentai Gokaiger.
She was a member of the idol group Tomato n'Pine.
She is currently affiliated with Weeds Company.