Tso-hsin Cheng (郑作新 also transcribed as Zheng Zuoxin) (18 November 1906 – 27 June 1998) was a Chinese ornithologist known for his seminal work on the birds of China and mentoring a generation of researchers. Educated in the United States, he chose to stay in China after the Second World War though many of his academic colleagues moved to Taiwan. He was severely punished during the Cultural Revolution despite being a member of the Communist Party.