Lu Ding Ji may refer to:
The Deer and the Cauldron, known as Lu Ding Ji in Chinese, is a novel by Jin Yong. An alternate English translation of the title is The Duke of Mount Deer. Films adapted from the novel: Royal Tramp, a 1992 Hong Kong film Royal Tramp II, the sequel to Royal Tramp Television series adapted from the novel: The Duke of Mount Deer (1984 Hong Kong TV series), a 1984 Hong Kong television series The Duke of Mount Deer (1984 Taiwanese TV series), a 1984 Taiwanese television series The Duke of Mount Deer (1998 TV series), a 1998 Hong Kong television series The Duke of Mount Deer (2000 TV series), a 2000 television series Royal Tramp (TV series), a 2008 Chinese television series