Kaigetsu 戒月 was a Japanese Vinaya monk of the Edo era; lifedates not preserved. He is remembered solely for his gǎilù 改錄 (“revised edition”) of Huìxiǎn’s (慧顯) Xíngshì chāo zhūjiā jì biāomù 行事鈔諸家記標目 (KR6k0170, X44n0741). His editorial intervention preserved the original Sòng compilation through the Tokugawa Manji-canon recension. Source: DILA Buddhist Person Authority A000509.