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Early life

Chan was born on 7 April 1954 in British Hong Kong as Chan Kong-sang to Charles and Lee-Lee Chan, political refugees from the Chinese Civil War. In circa 1937, Chan's father, originally named Fang Daolong, briefly worked as a secret agent for Lieutenant General Dai Li, the chief spy in Kuomintang-ruled China. For fear of being arrested by the communist government, Chan's father fled to British Hong Kong in the 1940s and changed his surname from Fang to Chan. Chan was his wife Chan Lee-lee's surname. Chan discovered his father's identity and changed his Chinese name to Fang Shilong (房仕龍) in the late 1990s, the name he would have been named according to his kin's genealogy book. Chan's ancestral roots are located in Wuhu, Anhui.

Chan spent his formative years within the grounds of the French consul's residence in the Victoria Peak, British Hong Kong, as his father worked as a cook there. Chan attended the Nah-Hwa Primary School on Hong Kong Island, where he failed his first year, after which his parents withdrew him from the school. In 1960, his father emigrated to Canberra, Australia to work as the head cook for the American embassy, and Chan was sent to the China Drama Academy, a Peking Opera School run by Master Yu Jim-yuen. Chan trained rigorously for the next decade, excelling in martial arts and acrobatics. He eventually became part of the Seven Little Fortunes, a performance group made up of the school's best students, gaining the stage name Yuen Lo (元樓) in homage to his master. Chan became close friends with fellow group members Sammo Hung and Yuen Biao, and the three of them later became known as the Three Brothers or Three Dragons. After entering the film industry, Chan along with Sammo Hung got the opportunity to train in hapkido under the grand master Jin Pal Kim, and Chan eventually attained a black belt. As a martial artist, Chan is also skilled in multiple forms of Kung-Fu. He is also known to have trained in other martial art forms such as Karate, Judo, Taekwondo, and Jeet Kun Do.

Chan joined his parents in Canberra, Australia in 1971, where he briefly attended Dickson College and worked as a construction worker. A fellow builder named Jack took Chan under his wing, thus earning Chan the nickname of "Little Jack", later shortened to "Jackie", which has stuck with him ever since.