Haruka Wakao is a Japanese manga artist and original creator, primarily known for her work in the comedy genre. Her birth date is recorded as December 21, and she hails from Aichi Prefecture, Japan. She is female and has blood type A. Her stated hobby or specialty is undercover research, which she employs in the creation of her work.

Wakao is best recognized as the original creator of the manga series Azumi Mama Mia. The series was serialized in Weekly Young Jump, a prominent manga magazine, beginning around September 1994. The manga's success led to its adaptation as an anime television series. The Azumi Mama Mia anime, produced by Toei Animation, premiered in Japan on July 7, 1997, and aired a total of 60 episodes. Each episode had a runtime of five minutes, and the series was broadcast on TV Asahi until October 2, 1997. Within the production, Wakao is credited as the original creator, with Yukio Kaizawa serving as the series director.

As a female creator working in the manga industry, her professional activities are documented primarily in the mid-1990s, with her notable work achieving both serialization in a major weekly magazine and an anime adaptation. Beyond her manga work, she has also contributed written columns to Figure King magazine.