Maya Koikeda (小池田 マヤ Koikeda Maya?, born May 4, 1969 in Hikari, Yamaguchi Prefecture, Japan) is the pen name of a Japanese manga artist. Her real name is Keiko Yamada (山田 佳子 Yamada Keiko?), and her pen name was created by saying backward the syllables from her real name. Koikeda graduated with a degree in art from the Kyoto City University of Arts. In addition to her work in manga, she is a part-time lecturer at a vocational school.
Koikeda won the first Hairdressing Scissors-chan Grand Prize presented by the Japan National Hairdressing Trade Association for her manga Barber Harbor.