Li Mochou (李莫愁) is a fictional character in the wuxia novel The Return of the Condor Heroes by Jin Yong. A member of the Ancient Tomb Sect, she was trained in martial arts by the same master as the female protagonist Xiaolongnü, but had been expelled from the sect before the events of the novel take place. Described as beautiful in appearance, she becomes a vicious killer after her lover, Lu Zhanyuan, betrayed her. However, she appears as a motherly figure to the infant Guo Xiang, whom she kidnaps from her parents. She is seen trying to take the Jade Maiden Sutra from Xiaolongnü on several occasions at the beginning of the novel, but has never been successful. She commits suicide by throwing herself into the fire in Passionless Valley.