Kakuyū 覺融 (dates unknown; fl. late-Kamakura → Muromachi), medieval Jōdoshū monk of the Seizan-Fukakusa branch, identified in his self-attributions as shamon of Ugi Hōdō-in 鵜木寶幢院沙門 — a sub-temple of the Seizan school. Author of two consecutive Taishō entries on Pure-Land doctrinal pedagogy:
- Jōdo dōmō shiki-meimoku 淨土童蒙指歸名目 (KR6t0343) — elementary catechetical primer enumerating Pure-Land doctrinal vocabulary in meimoku (topical-heading) format;
- Jōdoshū hōmon dai-zu 淨土宗法門大圖 (KR6t0344) — large diagrammatic doctrinal-overview chart of Jōdoshū doctrine with hairyū-jo-shō-bō (廢立助正傍) three-fold ranking of practices.
Beyond these two attributions, Kakuyū is otherwise unattested in the medieval-Japanese Pure-Land historiographical sources; his exact dates, institutional position, and lineage-affiliations within the Seizan-Fukakusa sub-line cannot be precisely determined from currently-available evidence. The meimoku and hōmon-dai-zu genres in which he worked are characteristic of the late-Kamakura through early-Muromachi gakumon-bukkyō of the Seizan school, so a date of c. 1300–1500 is most defensible.