Shinzui 信瑞 (Kyōsaibō 敬西房, ? – 1279-11-22), Kamakura-period Japanese Pure Land monk and one of the most important second-generation Hōnenmonryū biographers. Resided at Kōgan-ji 弘願寺 in Kyoto. DILA Authority A000808.
Shinzui stands in the Hōnen lineage outside the Chinzei main line: he studied principally under Ryūkan 隆寛 (founder of the Chōrakuji-gi 長樂寺義 sub-line) and Shinkū 信空 (the Hakuga-bō 白河房 line), and propagated Shinkū’s mukan shōmyō 無觀稱名 (“vocal nenbutsu without contemplation”) teaching. His principal works are Jōdo sanbukyō ongishū KR6f0083 淨土三部經音義集 in 4 fascicles (T2207, a phonetic-and-glossary commentary on the Three Pure Land sūtras, compiled 寶治 2 = 1248); Kokutani Shōnin den 黑谷上人傳 (a biography of Hōnen, presented to the regent Hōjō Tokiyori 北條時頼 in 1262); Myōgi shingyōshū 明義進行集 in 3 fascicles (biographical notices of eight learned monks converted to nenbutsu, compiled between 1242 and 1275; rediscovered at Kongō-ji 金剛寺 in 1918); and a biography of Sennyū-ji’s Shunjō 俊芿 (1244). The combined biographical-and-philological corpus makes Shinzui a key figure for documenting both the institutional spread of early Jōdoshū and the textual culture of the Three Pure Land sūtras in the Kamakura period.