Momo Ishibashi is a Japanese voice actress born on February 13, 1996, in Kanagawa Prefecture, Japan. She is affiliated with the talent agency Aoni Production. Her interest in voice acting developed from a young age, inspired by narrated television programs and participation in school plays. She is a graduate of the Amusement Media Gakuen Tokyo school.

Ishibashi's professional career began in the mid-2010s, with her early roles including appearances in major long-running series such as Digimon Universe: Appli Monsters, Dragon Ball Super, and One Piece in 2016 and 2017. Her early work also included roles in the Pretty Cure franchise, appearing in Witchy Pretty Cure! and Kirakira Pretty Cure a la Mode. A significant portion of her work consists of supporting and guest characters, often voicing young boys, girls, and various townspeople, demonstrating her versatility. Examples of this include roles in series like GeGeGe no Kitarō, Fruits Basket, and A Certain Scientific Railgun T.

In 2022, Ishibashi voiced a role specified as "Baby" in the short-form educational anime Baby-Hamitang, which aimed to teach children about the Sustainable Development Goals. In 2024, she was cast as the character Pop-poh, a penguin, in the JOCHUM television anime, a series based on characters created by Sanrio in collaboration with the Japanese boy band JO1. Her role as Pop-poh was part of a main cast featuring numerous young voice actors.

Beyond these titles, her filmography includes a wide array of roles in television anime, original net animations, original video animations, and video games. Notable game credits include appearances in God Eater Resonant Ops, Overhit, Lost Ark, and the rhythm game Sound Voltex, where she voiced the character Gracie. She has also been involved with original multimedia projects, such as voicing Kureha Daigo in the Onsen Musume franchise. Her work across different media highlights a steady and active career in the voice acting industry since her debut.