Cheng Man-ch'ing or Zheng Manqing was a Chinese expert of tai chi, Chinese medicine, and the so-called three perfections: calligraphy, painting and poetry. He was born in Yongjia, Zhejiang Province, during the Qing dynasty. Cheng died March 26, 1975; his grave is near the city of Taipei in Taiwan.

Tai chi is an internal Chinese martial art practiced for self-defense and health. Known for its slow, intentional movements, tai chi has practitioners worldwide and is particularly popular as a form of gentle exercise and moving meditation, with benefits to mental and physical health.