Kazuo Komatsubara (小松原 一男 or 小松原 一夫, Komatsubara Kazuo, December 24, 1943 – March 24, 2000) was a Japanese animator, animation director and character designer born in Yokohama, Kanagawa, Japan. He worked as an independently contracted character designer for Toei Animation in the 1970s and 1980s. He was a member of the board of directors of animation studio Oh! Production (which he helped found along with Norio Shioyama, Kōichi Murata, and Kōshin Yonekawa). He died on March 24, 2000 due to a cancerous tumor on his neck.