is a Japanese actress, tarento, and former gravure idol. She is affiliated with Horipro.
Niiyama was born in Aomori. She was previously married to baseball playerÃÂ Satoshi Kuroda in 2004. Together, they have a daughter named Koharu Niiyama, born on July 12, 2006. They divorced on December 29, 2014.
On November 7, 2023, Niiyama announced her second marriage to a non-celebrity man, who is thirteen years her junior. They have reportedly been in a relationship for five years.