Gyōnen 凝然 (1240–1321) was a Japanese Kamakura-period Kegon 華嚴 (Huayan) and Risshū 律宗 (Vinaya) scholar at Tōdai-ji 東大寺 in Nara. The most learned scholastic encyclopedist of his generation, he composed comprehensive commentaries on dozens of canonical texts and is best known for his eight-school doctrinal-historical Hasshū kōyō 八宗綱要. His massive Bommō kaihon-sho nichijūshō 梵網戒本疏日珠鈔 (KR6k0081) — a fifty-fascicle commentary on the Fànwǎng jīng — represents the most extensive single Japanese-Buddhist treatment of the bodhisattva-precepts. The work belongs to the broader Kamakura Vinaya revival initiated by Eison 叡尊 (1201–1290) and his disciples.