Huángbò Xīyùn (simplified Chinese: 黄檗希运; traditional Chinese: 黄檗希運; Wade–Giles: Huang-po Hsi-yün; literally: "Xiyun of Mt. Huangbo", Japanese: Ōbaku Kiun) (died 850[a]) was an influential Chinese master of Zen Buddhism during the Tang Dynasty.
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