Mina Nagashima is a Japanese voice actor from Tokyo, born on May 30, 1989. Her career in entertainment began in 2005 with a focus on stage performance, an area she was originally more interested in than voice acting. After a period of exploring other creative fields, she decided to broaden her scope to include all areas of acting and enrolled in a voice acting vocational school, leading to her professional debut.

Nagashima made her voice acting debut in 2015 with her most prominent role to date, Haruna Kamijo, in the anime adaptation of The Idolmaster Cinderella Girls. She has since continued to voice this character across related projects, including the short-form anime series Idolm@ster Cinderella Girls Theater and various live concert events for the franchise. Her involvement with the Idolmaster franchise is a significant part of her career, where she is noted for her consistent performances and her dedication to the character, often wearing glasses during live stage appearances, a signature trait of Haruna Kamijo.

Beyond this signature role, her other voice acting credits include parts in anime such as Mysterious Joker, Saekano: How to Raise a Boring Girlfriend, Yu-Gi-Oh! Arc-V, and Cheating Craft. She has also contributed her voice to various video games, including Super Robot Wars X-Ω and Revolver Eight. Outside of her voice work, Nagashima is skilled in the traditional Japanese martial art of naginata, holding a rank of ikkyu (first level) from the All Japan Naginata Federation. In April 2023, she changed agency affiliations, moving from THE NEXT to Remax.