Prince Toneri (舎人親王 Toneri shinnō) (January 28, 676 – December 6, 735) was a Japanese imperial prince in the Nara period. He was a son of Emperor Temmu. He was given the posthumous name, Emperor Sudoujinkei (崇道尽敬皇帝 Sudōjinkei Kōtei), as the father of Emperor Junnin. In the beginning of the Nara period, he gained political power as a leader of imperial family together with Prince Nagaya. He supervised the compilation of the Nihonshoki.
Prince Toneri was a son of Emperor Temmu. Toneri's mother was Princess Nītabe, who was a daughter of Emperor Tenji.
His consort was Taima-no-Yamashiro (or Tagima-no-Yamashiro) and he had many sons: Princes Mihara, Mishima, Fune (or Funa), Ikeda, Moribe, Miura and Ōi (later Emperor Junnin).
Although he was plagued, he survived and lived longest among the sons of Emperor Temmu.
Some of his descendants (known as the Kiyohara clan) took the Kiyohara surname. Examples include Kiyohara no Natsuno, who was the grandson of Prince Mihara, Kiyohara no Fukayabu, Kiyohara no Motosuke and his daughter, Sei Shōnagon.