Kanjo 寛助 (1057–1125) was a senior Japanese Shingon master of the late Heian period, ninth abbot of Ninnaji 仁和寺, and the great patriarch of the Hirosawa-ryū 廣澤流 in the era of cloistered-emperor Buddhism. Born into the Fujiwara 藤原 clan, he was the son of Sangi 參議 Fujiwara no Ietsune 家經 and was tonsured under Seishin 性信 at Ninnaji, eventually succeeding to the abbacy in 1102 and holding it for over two decades. He was the principal religious counselor of Cloistered Emperor Shirakawa 白河院 (r. 1073–1087, cloistered 1086–1129), through whose patronage Hirosawa-ryū Shingon attained its institutional zenith. Kanjo also founded Jōjū-in 成就院 at Toganoo as a sub-temple of Jingo-ji, and the Sō-Daigosaiin 總大御室 byname “Great Lord-Cloister” attached to him reflects his unparalleled stature among the late-Heian hosshin’ō.
His scholarly output was vast — over a hundred compilations are listed in the medieval Shingon bibliographies. His principal surviving work in the Kanripo corpus is the seven-fascicle KR6t0182 Biéxíng (Special Performances), the foundational individual-deity ritual encyclopedia of the Hirosawa-ryū. He is also credited with the Shoson dōjōkan 諸尊道場觀 (a one-fascicle visualization compendium) and many kuden records, most of which were transmitted through his disciples.