Yin Ju-keng; (Chinese: 殷汝耕; pinyin: Yīn Rǔgēng; Wade–Giles: Yin Ju-keng; Hepburn: In Jyokou; 1885 - December 1, 1947) was a politician in the early Republic of China, later noted for his role as chairman in the Japanese-controlled East Hebei Autonomous Government and subsequent puppet regimes, such as the Wang Jingwei regime, during the Second Sino-Japanese War.

During his stay in Japan, he became an active member of the Tongmenghui movement to overthrown the Qing Dynasty, and also married a Japanese woman.

Per the orders of Tongmenghui leader Huang Xing, he returned to China to oversee revolutionary activities in Hubei province.

After participating in the 2nd Kuomintang party conference in 1913, he decided to return to Japan to complete his studies at Waseda University, where he majored in law.

However, Guo was killed months later in a revolt against Manchurian warlord Zhang Zuolin, and Yin again sought refuge on Japanese territory.

Allowed back to Beijing after a five-year exile in Japan, he returned to public life after the establishment of the Wang Jingwei Government, but was appointed to only a relatively minor position in Shanxi province in 1942.