Miho Nagahori is a Japanese voice actress and narrator from Tokyo, born on July 25, 1961. She is a graduate of the Japanese literature department at Komazawa Junior College. Throughout her career, she has been affiliated with talent management firms such as ARTSVISION and OFFICE WATT, but later worked as a freelancer.

Nagahori has built a career spanning a wide variety of roles in anime, original video animations, and video games from the late 1980s through the 2000s. One of her most prominent roles is Lebia Maverick in the television anime series Silent Möbius. She also played Janet Johnson in Macross 7 and Shizuru in MoonPhase. In the long-running children's series Sore Ike! Anpanman, she provided voices for several characters, including Butaman Brother and Mimi Sensei. Her work also extended to the franchise Kiteretsu Daihyakka and the film version of Kodomo no Omocha, where she voiced Mitsuya Sensei.

Beyond television, Nagahori was active in the original video animation market of the 1990s. In addition to the role of Reiko Tashiro in Shin Dosei Jidai: Hawaiian Breeze, her OVA credits include Oche in Princess Minerva, Reiko Tashiro in the drama Shin Dosei Jidai, and roles in works such as Very Private Lesson and Ippatsu Kanta-kun. She also contributed to the video game industry, voicing characters like Katerina and Adelicia in Brigandine: Grand Edition. Her work as a narrator included educational programs such as the video series Omoshiro Jidousha Zukan.