Yui Ichikawa (市川 由衣, born 10 February 1986), is an actress and model from Tokyo, Japan. She is also known by her nickname, Yui-nyan.
As an actress she has appeared in several dramas (doramas), and in recent years she has concentrated more on her film career. She played a minor role in the movie Ju-on: The Grudge and reprised her character for a bigger role in the sequel, Ju-on: The Grudge 2.
She has recently portrayed Nana Komatsu (Hachi) in the film adaptation of the famous manga Nana, and on December 18, 2006, Ichikawa and co-star Mika Nakashima came to New York City for the International Premier of NANA 2 at the IFC Center.
She has also tried to pursue her own music career, but hasn't released any new singles or albums since 2004.