Ringo Aoba is a Japanese voice actress and singer born on April 5, 1983, in Kagoshima Prefecture, Japan. She began her career in the voice acting industry in 2005 after winning a competition, making her debut in the adult game Black Songstress. She was formerly affiliated with the talent agency Rock'n' Banana until July 2013, after which she began working as a freelance voice actor.

Aoba is primarily known for her extensive work in adult computer games, a field in which she has been highly active. In 2010, she was noted as the voice actor who performed in the highest number of adult games that year. While this is her main area of work, she has also appeared in television anime and all-ages game adaptations, often using the same stage name. This makes her one of the few voice actors in her field who is publicly open about her work across both demographics. In addition to her birth name, she has used several other stage names throughout her career, including Aozora Ramune, which she has employed for specific types of adult game roles. Beyond voice acting, she is also a singer and has released several singles and a solo album, Adam's Apple, in 2011.

Her voice acting filmography is extensive and spans hundreds of roles. Among her most frequently cited and representative roles are Ibuki Hinata in Hoshizora e Kakaru Hashi (A Bridge to the Starry Skies), which was also adapted into a television anime in 2011. She is also well known for her role as Batai (Ma Dai) / Tanpopo in the Shin Koihime Musō series of games and anime. Other prominent game roles include Nemu Manaka in Euphoria, Kirie Kagarino in Bishoujo Mangekyo: Norowareshi Densetsu no Shojo (credited as Aozora Ramune), and Sakuya Kurobane in the fortissimo series. In adult OVA (original video animation) adaptations, her roles have included Catue Dragundaala in Princess Knight Catue, Mai Ebihara and Nanoha Homura in Honō no Haramase Dōkyūsei, Mio Sugiyama in Fault!!, Narika Shihōdō in Beat Blades Haruka, and Natane Kusakari in Tropical Kiss.