(Master) Yin Shun (????, Yìnshùn Daoshi) (5 April 1906 – 4 June 2005) was a well-known Buddhist monk and scholar in the tradition of Chinese Mahayana Buddhism.
Though he was particularly trained in the Three Treatise school, he was an advocate of the One Vehicle (or Ekayana) as the ultimate and universal perspective of Buddhahood for all, and as such included all schools of Buddha Dharma, including the Five Vehicles and the Three Vehicles, within the meaning of the Mahayana as the One Vehicle.
Yin Shun's research helped bring forth the ideal of "Humanistic" (human-realm) Buddhism, a leading mainstream Buddhist philosophy studied and upheld by many practitioners.
His work also regenerated the interests in the long-ignored Agamas among Chinese Buddhist society and his ideas are echoed by Theravadin teacher Bhikkhu Bodhi.
As a contemporary master, he was most popularly known as the mentor of Cheng Yen (Pinyin: Zhengyan), the founder of Tzu-Chi Buddhist Foundation, as well as the teacher to several other prominent monastics.
Although Master Yin Shun is closely associated with the Tzu-Chi Foundation, he has had a decisive influence on others of the new generation of Buddhist monks such as Sheng-yen of Dharma Drum Mountain and Hsing Yun of Fo Guang Shan, who are active in humanitarian aid, social work, environmentalism and academic research as well.
He is considered to be one of the most influential figures of Taiwanese Buddhism, having influenced many of the leading Buddhist figures in modern Taiwan.