Ion Momoyama (ももやま いおん) is a Japanese female voice actor and singer known for her work in adult games. She belongs to Pro-Fit and hails from Hokkaido. Standing at 161 cm tall, she has an O blood type. Ion graduated from the Pro Fit Voice Actor Training School (11th gen member) and was born as the second daughter of three sisters. As a child, she enjoyed drawing and dreamed of becoming a shojo manga artist. However, her aspirations were cut short when she received criticism during junior high school. Nonetheless, Ion pursued her passion for voice acting in high school, despite opposition from her parents. She worked as a nurse while attending the professional fit voice actor training school and eventually became a full-time member of Profit on October 1, 2014. In 2013, she gained attention for her role as Kanna Makino in Tamako Market, her first regular work. Ion made her artist debut with her single "Ienai Ice Cream" on August 27, 2014. She is a qualified associate nurse and often goes by the nickname "Juri-chan." Ion participated in the 1st Music Rayn audition for a super voice actor alongside Chisato Mori, who has been her friend since then.