Fong Sai-yuk (or Fang Shiyu) is a semi-fictional Chinese martial artist and folk hero from Zhaoqing City, Guangdong Province of the Qing dynasty.
He was a disciple of Shaolin and his martial arts techniques were considered to have contributed to the development of Hung Ga Kuen.
[citation needed] He was first mentioned in wuxia stories dating from the Qing dynasty (1644–1912), such as Shaolin Xiao Yingxiong (少林小英雄; Young Hero of Shaolin), Wan Nian Qing (萬年青) and Qianlong You Jiangnan (乾隆游江南; The Qianlong Emperor Visits Jiangnan).
His father, Fong Tak (方德; Fang De), was a wealthy merchant, while his mother, Miu Tsui-fa (苗翠花; Miao Cuihua), was a martial arts expert and the daughter of Miu Hin, one of the Five Elders of Shaolin who escaped the Shaolin massacre.
To escape those who pursued him over the killing of the aforementioned master, Sai-yuk ran to Fujian Shaolin Temple to hide from pursuers.