Nana Kouno (高野 菜々, Kōno Nana, born May 14, 1989) is a Japanese stage actress and voice actress (seiyuu) from Hiroshima City, Hiroshima Prefecture. As an actress, she is affiliated with Ongakuza Musical/R Company and as a voice actress with Ken Production.

Graduated from Hiroshima Music High School of Music, Department of Performing Arts, majoring in Musicals. Her special skills are singing and Hiroshima dialect. Her hobbies are singing, watching plays, vocal care, acupuncture, and collecting tableware. In 2020, she won the Newcomer Award in Theater Division in the 75th Agency for Cultural Affairs Arts Festival for her performance as Joan (lead role) in SUNDAY.

After graduating from Hiroshima Music High School, she applied to the Takarazuka Music School twice but was rejected. In June 2008, she passed the audition and became a member of Ongakuza Musical/R Company. She was selected for the lead role in his debut play Mademoiselle Mozart. She also performs as a voice actor in anime and games.