Demi-Gods and Semi-Devils is a wuxia novel by Jin Yong. It was first serialised concurrently from 3 September 1963 to 27 May 1966 in the newspapers Ming Pao in Hong Kong and Nanyang Siang Pau in Singapore. It has been adapted into films and television series in Hong Kong, Taiwan and Mainland China numerous times since the 1970s. Set in 11th-century China, the plot is made up of separate yet intertwining storylines revolving around three protagonists – Qiao Feng, Duan Yu and Xuzhu – and other characters from various empires and martial arts sects. The novel examines the cause and effect that form and break the inherent bonds underlying each major character's struggles on five uniquely corresponding levels: self, family, society, ethnic group, and country (dominion).

Wuxia is a genre of Chinese fiction concerning the adventures of martial artists in ancient China. Although wuxia is traditionally a form of historical fantasy literature, its popularity has caused it to be adapted for such diverse art forms as Chinese opera, manhua, television dramas, films, and video games. It forms part of popular culture in many Chinese-speaking communities around the world. According to Hong Kong film director, producer, and movie writer Ronny Yu, wuxia movies are not to be confused with martial arts movies.