Yishan Yining (?? ??, in Japanese: Issan Ichinei) (1247 - 28 November 1317) was a Chinese Buddhist monk who traveled to Japan.
Before monkhood his family name was Hu.
(? Hú).
He was born in 1247 in Linhai, Taizhou, Zhejiang, China.
He was a monk of the Linji school during the Yuan Dynasty of China, and subsequently a Rinzai Zen master who rose to prominence in Kamakura Japan.
He was one of the chief disseminators of Zen Buddhism among the new militarized nobility of Japan, a calligrapher and a writer.
Mastering a variety of literary genres and being a prolific teacher, he is mostly remembered as the pioneer of Japanese Gozan Bungaku literature, that recreated in Japan the literary forms of Song dynasty.