Mina Kobayashi is a Japanese voice actress known for her work in anime, video games, and foreign media dubbing. She was born on January 21 in Fukushima Prefecture, Japan, and is affiliated with the talent agency Kekke Corporation. Kobayashi has a height of 155cm and blood type A.

Her career spans a wide range of supporting roles in numerous anime series. Her notable television anime credits include appearances in NANA, Blue Flower, Toradora!, A Certain Scientific Railgun, Detective Opera Milky Holmes, Tiger & Bunny, and Natsume's Book of Friends, where she voiced the character Sagume in its third season. She also contributed to the web anime Junji Ito Maniac: Japanese Tales of the Macabre in 2023, providing the voice for the character Mother in the segment Layers of Fear.

Beyond animation, Kobayashi has an extensive career as a dubbing artist for foreign films and television series. Her voice work includes roles in the Japanese language dubs of major Hollywood productions such as Harry Potter and the Deathly Hallows Part 1 (as Mrs. Granger), Avengers, Iron Man 2, The Batman, and series like The Closer and Major Crimes (as Sharon Raydor) and Moon Knight. Her work also extends to video games, with roles in titles such as KanuChi and Wand of Fortune 2 FD. She has frequently collaborated with fellow voice actress Yuko Kaida across multiple projects. In addition to her acting, her reported skills include cooking and swimming.