Maiko Iuchi (井内 舞子, Iuchi Maiko, born January 2) is a Japanese composer and arranger. Much of her work is for video games and anime.

Iuchi was born in Hiroshima. She learned piano and percussion from a young age. As a high school student, she performed as a drummer in various bands.^[1] She graduated from the music design program at the Kunitachi College of Music and began her career working for video game hardware and software company SNK.^[2] In 2002, she left SNK to work for music production group I've as an outsource affiliate. In 2013 she became a full time employee at I've.^[3] In 2017 she retired from her full time position at the company but remained as a partner.

As a composer, she has written music for many video games and anime series including the A Certain Magical Index series, A Certain Scientific Railgun series, WIXOSS series, and Rewrite.