Louis Fan Siu-wong (born 19 June 1973) is a Hong Kong actor and martial artist. He is best known for his role as Ricky in Riki-Oh: The Story of Ricky (1991) and as Jin Shanzhao in Ip Man (2008) and Ip Man 2 (2010), as well as his roles in some television series produced by TVB.
Fan is the son of Fan Mei-sheng (or Fan Mui-sang), an actor of the Shaw Brothers Studio. At a young age, he often accompanied his father to work and made minor appearances in some of the movies his father acted in. When he was 14, his father sent him to Xuzhou, China, to learn gymnastics and wushu.
Fan was a contract artiste under the Hong Kong television station TVB throughout the 1990s, and he starred in some television dramas like Demi-Gods and Semi-Devils (1997) and Young Hero Fang Shiyu (1999). He left TVB later and worked on some Taiwanese and mainland Chinese television series before focusing on films; most of the movies he acted in during this period are not very well-known internationally.
Fan's most recognisable role in more recent times is "Jin Shanzhao", the tough Northern martial artist in the 2008 film Ip Man, which starred Donnie Yen as Wing Chun grandmaster Ip Man. Fan's performance in Ip Man earned him a nomination for Best Supporting Actor at the 28th Hong Kong Film Awards in 2009. He reprised his role as Jin Shanzhao in Ip Man 2, a 2010 sequel to Ip Man. He played a new character in The Legend Is Born – Ip Man (2010), another movie about Yip Man that is unrelated to Ip Man and Ip Man 2.