Rima Nishizaki is a Japanese actress and voice actor born on June 9, 1993, in Tokyo, Japan. She is a graduate of the talent division of Horikoshi High School. Before transitioning into acting and voice acting, Nishizaki initially worked as a gravure model.

Nishizaki made her voice acting debut in 2013 with the role of Rento Kirishima in the television anime series Stella Women's Academy, High School Division Class C3. This character, a first-year student and a natural member of the school's survival game club, is her most prominent and most frequently cited voice role. Her decision to pursue voice acting came from a desire to expand her range of performance, leading her to audition for and successfully obtain this part. Alongside her main cast colleagues, she also performed the series' ending theme song, Hajikero! C3!.

Prior to her voice acting debut, Nishizaki's on-screen acting career included a role as Mizuho Nakatani in the 2009 television drama Shokojo Seira, an adaptation of the novel A Little Princess. She has also appeared in the 2014 live-action film adaptation of the manga Kimi ni Todoke, titled Just You and Me. Following her anime debut, her only known voice acting credit remains her role in Stella Women's Academy, High School Division Class C3.