Mai Nagai is a Japanese voice actress from Gunma Prefecture, born on December 28. She is affiliated with the talent agency AstralBlaze. Her career preparation included graduating from the 19th class of Aoni Juku, a training school attached to the talent agency Aoni Production.

Nagai is known for several prominent roles in anime adaptations of visual novels. She voices the character Shigure Minaduki in the Nekopara franchise. Her work in this series includes the Nekopara OVA released in 2017 and the Nekopara OVA titled Nekopara OVA: Koneko no Hi no Yakusoku from 2018. She also voices the character Kakaa in the anime series Rail Romanesque, which began airing in October 2020. Her role as Kakaa continued into the second season of the series, which premiered in October 2023.