Kanshin 寛信 (1084–1153) was a senior Japanese Shingon master of the late Heian period, of the Daigo-ji Sanbō-in / Riju-bō transmission line. He held the chamber-name Rishu-bō 理趣房 (“Chamber of the Rishu-kyō” — the Adhyardhaśatikā-prajñāpāramitā), under which his works appear in the medieval Shingon catalogs. He was a disciple of the Sanbō-in / Ono-ryū tradition and rose to the rank of Sōjō; he was active across the same generation as Yōgon 永嚴 (1075–1151) and Genkai 元海 (1093–1156), the late-Heian generation of Daigo Shingon systematisers.
His principal surviving work is the four-fascicle KR6t0188 Chuánshòu jí — the Collected Transmission-Receptions, a comprehensive ritual encyclopedia covering thirty-six bessen-hō in the order of the standard Shingon pantheon.
Surviving work in the Kanripo corpus: KR6t0188 Chuánshòu jí (4 fasc.).