InGen

Ingen Ryūki
Yinyuan Longqi
Portrait of Ingen Ryūki from 1671
Religion	Buddhism
School	Chán
Lineage	Linji school
Personal
Born	(1592-12-07)December 7, 1592 Fuqing, Fujian, China
Died	May 19, 1673(1673-05-19) (aged 80) Uji, Kyōto, Japan

Ingen Ryūki (traditional Chinese: 隱元隆琦; pinyin: Yǐnyuán Lóngqí; Japanese: 隠元隆琦) (1592–1673) was a Chinese Linji Chán Buddhist monk, poet, and calligrapher. He is most known for founding the Ōbaku school of Zen Buddhism in Japan. Ingen's name in Chinese was Yinyuan Longqi.

Ingen was born on December 7, 1592, in Fuqing, Fujian province, during China's Ming Dynasty. Ingen's father disappeared when he was five. At age 20, while searching for him, Ingen arrived at Mount Putuo off Zhejiang province, where he served tea to monks. At 28, after the death of his mother, he was ordained as a monk at his family temple - Wanfu Temple, Mount Huangbo, Fujian. Ingen's teachers there were Miyun Yuanwu and Feiyin Tongrong. In 1633 he received dharma transmission from the latter, and in 1637 served his first term as abbot. His second term as 33rd abbot of the temple began in 1646 and at this time he is credited with helping Mount Huangbo to develop into a thriving Buddhist centre.

In 1654, after repeated requests of Itsunen Shoyu, he went to Nagasaki, Japan with around 30 monks and artisans, including his disciple Muyan. He founded the Ōbaku sect. He established the Ōbaku head temple Manpuku-ji at Uji in 1661.