|Birth name||Ryōichi Hattori|
|Born||October 1, 1907|
|Origin||Osaka Prefecture, Japan|
|Died||January 30, 1993(aged 85)|
|Associated acts||Ichirō Fujiyama, Noriko Awaya, Tadaharu Nakano, Nakano Nippon Columbia Rhythm Boys, Ri Koran, Shizuko Kasagi, Li Xianglan, Ichimaru, Akira Kishī|
Ryōichi Hattori (服部 良一 Hattori Ryōichi?, October 1, 1907 Osaka – January 30, 1993) 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 Hattori at the Internet Movie Database
- "Jazzy". Time. 1949-08-08. Retrieved 2009-01-27.
- "China's wartime history still haunts popular theme song". BNET. via Asian Economic News. 1999-08-16. Retrieved 2009-01-27.