Kazuo Oga (男鹿 和雄, Oga Kazuo?, born 29 February 1952 in Akita Prefecture, Japan) is an art director and background artist for many Madhouse Studio and Studio Ghibli anime films, Oga worked with major directors Hayao Miyazaki, Isao Takahata, Yoshiaki Kawajiri, Osamu Dezaki. He also published two artbooks and directed a short animated film.