Ryōichi
# Ryōichi

Ryōichi, Ryoichi, Ryouichi or Ryohichi (written: 良一, 遼一, 僚一, 亮一 or 了一) is a masculine Japanese given name. Notable people with the name include:

* Ryoichi Adachi (安達 了一, born 1988), Japanese baseball player
* Ryoichi Fujisawa (藤沢 良一, born 1927), Japanese Nordic combined skier
* Ryoichi Fukushige (福重 良一, born 1971), Japanese footballer
* Ryōichi Hattori (服部 良一, 1907–1993), Japanese composer
* Ryoichi Hattori (politician) (服部 良一, born 1950), Japanese politician
* Ryoichi Hirano, Japanese ballet dancer
* Ryoichi Ikegami (池上 遼一, born 1944), Japanese manga artist
* Ryoichi Jinnai (神内 良一, born 1926), Japanese businessman
* Ryoichi Kawakatsu (川勝 良一, born 1958), Japanese footballer and manager
* Ryoichi Kimizuka (君塚 良一, born 1958), Japanese screenwriter, television director and film director
* Kinoshita Ryoichi (木下 良一, born 1959), Japanese aikidoka
* Ryoichi Kurisawa (栗澤 僚一, born 1982), Japanese footballer
* Ryōichi Kuroda (黒田 了一, 1911–2003), Japanese lawyer and politician
* Ryoichi Maeda (前田 遼一, born 1981), Japanese footballer
* Ryōichi Sasakawa (笹川 良一, 1899–1995), Japanese businessman and politician
* Ryōichi Sekiya (關家 良一, born 1967), Japanese ultramarathon runner
* Ryoichi Taguchi (田口 良一, born 1986), Japanese boxer
* Ryoichi Takahashi (高橋 良一, 1898–1963), Japanese entomologist
* Ryōichi Tanaka (田中 亮一, born 1947), Japanese voice actor
* Ryōichi Yazu (矢頭 良一, 1878–1908), Japanese inventor
* Ryoichi Yoshida (吉田 良一, born 1965), Japanese sprinter
