List of Famous people named Ryoichi

Ryoichi Adachi is a Japanese professional baseball infielder for the Orix Buffaloes in Japan's Nippon Professional Baseball.

Ryōichi Sasakawa was a Japanese businessman, politician, and philanthropist. He was born in Minoh, Osaka. In the 1930s and during the Second World War he was active both in finance and in politics, actively supporting the Japanese war effort including raising his own paramilitary units. He was elected to the Japanese parliament during the war. After Japan's defeat he was imprisoned for a time, accused of war crimes, and then found financial success in various business ventures, including motorboat racing and ship building. He supported anticommunist activities, including the World Anti-Communist League. In 1951 he helped found the Nippon Foundation and became its first president. The foundation has done charitable work around the world, for which it and Sasakawa have received many official honors.

Ryōichi Hattori was a Japanese pop and jazz composer. Katsuhisa Hattori is his son. He had a great influence on Japanese pop and was awarded the People's Honor Award. Japanese jazz was downtrodden during World War II, but he created a jazz boom after the war. He composed many songs for various artists such as Noriko Awaya, Shizuko Kasagi, Ichimaru and Ichirō Fujiyama. He also composed Li Xianglan's song "Suzhou Nocturne", which created an embarrassing controversy over half a century though it was not a militaristic song.

Ryoichi Taguchi is a Japanese former professional boxer. He is the former WBA, IBF and The Ring Light Flyweight champion, having lost these titles in 2018.

Ryoichi Ikegami is a Japanese manga artist. After graduating from junior high school he moved to Osaka and drew manga while working as a billboard sign painter debuting at the age of 17 writing rental comics. In 1966 he published a story called Tsumi no Ishiki (罪の意識) in the gekiga magazine Garo that caught the eye of fellow Garo contributor, manga artist Shigeru Mizuki, who offered him a job as his assistant. Ikegami accepted and moved to Tokyo and worked as Mizuki's assistant for two and a half years. In 2001, he won the Shogakukan Manga Award for general manga as the artist of Heat. He became a professor at Osaka University of Arts in 2005.

Ryoichi Maeda is a Japanese football player who plays for FC Gifu. He played for Japan national team.

Ryoichi Kimizuka is a Japanese screenwriter and director for television and film.

Ryoichi Kawakatsu is a former Japanese football player and manager. He played for Japan national team.