Ronald Bi Jen-hsu (born 4 December 1938), known by his stage name Chin Han, is a retired Hong Kong actor, director, screenwriter and producer born in mainland China. He has appeared in over 50 Mandarin-language films in Hong Kong and Taiwan, many of them produced by the Shaw Brothers Studio in the 1960s and the 1970s.
Born in Weihai, Republic of China, Pi Jen-hsu moved to Hong Kong as a small child during the Japanese occupation of Hong Kong. After finishing from New Method College, his first career was in a hong. In 1961, he entered Shaw Brothers Studio, working as a script supervisor for director Yueh Feng. In 1964, he rose to fame when Yueh Feng cast him in a major Huangmei opera film Lady General Hua Mu-lan, opposite superstar Ivy Ling Po.
In 1966, Chin Han married Ivy Ling Po. They moved to Taiwan in 1973 where they continued to work in the film industry until immigrating to Canada in the late 1980s. After retirement, they made guest appearances in their son Kenneth Bi's directorial debut Rice Rhapsody (2004).