Shinran (親鸞^?, May 21, 1173 – January 16, 1263) was a Japanese Buddhist monk, who was born in Hino (now a part of Fushimi, Kyoto) at the turbulent close of the Heian Period and lived during the Kamakura Period. Shinran was a pupil of Hōnen and the founder of what ultimately became the Jōdo Shinshū sect in Japan.

Shinran was born on May 21, 1173 to Lord and Lady Arinori, a branch of the Fujiwara clan, and was given the name Matsuwakamaro. Early in Shinran's life his parents both died, so in 1181, Shinran's uncle entered him into Shoren-in temple near present-day Maruyama Park in Kyoto at age 9. He then practiced at Mt. Hiei for the next 20 years of his life. Letters between his wife and daughter indicate that he was a Tendai dōsō (堂僧^?, "hall monk"). Because of his devotion to the practices of the Lotus Sutra on Mt. Hiei, he became known as "the prodigy of Mt. Hiei."

According to his own account to his wife Eshinni (whose letters are preserved at the Hongan-ji), in frustration at his own failures as a monk and at obtaining enlightenment, he took a retreat at the temple of Rokkaku-dō. There, while engaged in intense practice, he experienced a vision in which Avalokitesvara appeared to him as Prince Shōtoku, directing Shinran to another disillusioned Tendai monk named Hōnen. In 1201, Shinran met Hōnen and became his disciple. During his first year under Honen's guidance, at the age of 29, Shinran attained enlightenment, or salvation through Amida's Vow. Though the two only knew each other for a few years, Hōnen entrusted Shinran with a copy of his secret work, the Senchakushū. However his precise status amongst Honen's followers is unclear as in the Seven Article Pledge, signed by Honen's followers in 1204, Shinran's signature appears near the middle among less-intimate disciples.