Miho Mashiro is a Japanese voice actor affiliated with the agency TYK Promotion. She was born on August 6, 1998, in Aichi Prefecture. Her interest in voice acting led her to attend a vocational school, during which she successfully passed a voice actor audition in Nagoya, paving the way for her entry into the industry.

Mashiro's most prominent role to date is as Oka Myojin in the 2021 television anime series Shikizakura. In this series, she voices the character of a shrine maiden destined to save the world. That same year, she also performed a minor role, providing ambience voices for the series Eighty-Six.

Her other voice acting credits include roles in web anime productions. In 2020, she voiced a character in Omegatrio Hero, followed by parts in Horror Foundation and Vapor Trail in 2021. In 2023, Mashiro expanded into voice work for an animated film, playing the character Kaiki Izumi in the movie Wasureboshi no Vertias Chapter 1: Kaen. Information regarding recurring collaborations with specific directors or fellow voice actors is not readily available. Similarly, while she has been active since her debut, public records of major awards or widely recognized achievements beyond her role in Shikizakura remain limited.