Takaaki Yoshimoto (吉本 隆明 Yoshimoto Takaaki?, 25 November 1924 – 16 March 2012) also known as Ryūmei Yoshimoto, was a Japanese poet, literary critic, and philosopher from Tokyo. He is the father of Japanese writer Banana Yoshimoto and of cartoonist Yoiko Haruno.
Yoshimoto was born in 1924, in Tsukishima, Tokyo. His family were boatmakers who had moved from Amakusa, Kumamoto prefecture, making small rental boats. In his teens Yoshimoto came under the influence of literature while receiving private tutoring, and began to write poetry in his teens. He was influenced by the work of Takamura Kotaro and Miyazawa Kenji. He was a 'militarist youth' during the war, but experienced the end of the war while mobilized for manual labor, and thereon became fascinated by Marxism.
Yoshimoto attended Tashima Elementary School in the Kyobashi Ward of Tokyo, Yonezawa Engineering School (Now Yamagata University), and graduated in 1947 from the Engineering Division of Tokyo Institute of Technology with a degree in Electrochemistry. During his studies, he became acquainted with the Mathematician Toyama Hiraku.
After graduation, Yoshimoto moved to industry, became a research student in 1950, and in 1952 took a position at Tokyo Ink Manufacturing Company Ltd. He continued his poetic output, writing his first representative works, Dialogue with Particularity and Ten Works for a Change in Position, and won the Arechi prize for new poets. He published a work of criticism, On Takamura Kotaro.