Yōsuke Yamamoto (山本 洋祐, Yamamoto Yōsuke, born June 22, 1960) is a Japanese judoka.
He was born in Tenmei(ja), Kumamoto Prefecture, and began judo at the age of a fifth grader.
After graduating from Nippon Sport Science University, he worked with a teacher in Yamagata and Yamanashi.
He won a gold medal at the -65 kg category of the World Championships in 1987.
As of 2009, Yamamoto coaches judo at his alma mater, Nippon Sport Science University, where he previously studied as an undergraduate. Among his students is former Pacific Rim champion Arata Kojima.