Xiaolongnü (小龍女; Xiǎolóngnǚ) is the fictional female protagonist of the wuxia novel The Return of the Condor Heroes by Jin Yong.

Before they decide what to do with the baby girl because the school does not accept female members, a middle-aged woman called Granny Sun appears and takes Xiaolongnü away to the nearby Ancient Tomb.

Meanwhile, Li Mochou spreads rumours in the jianghu that when Xiaolongnü turns 16, she will offer her hand in marriage to any man who can defeat her.

The Mongol prince Huodu believes the tale and travels to the Ancient Tomb, hoping to meet Xiaolongnü.

Xiaolongnü meets Yang Guo for the first time when he ventures into the Ancient Tomb while escaping from the bullies at Quanzhen School.

They fall in love, but the prevailing norms of the wulin (martial artists' community) makes their romance taboo due to master-apprentice relationship.

Notable actresses who have portrayed Xiaolongnü in films and television series include Nam Hung (1960–1961),[2] Mary Jean Reimer (1983), Idy Chan (1983), Angela Pan (1984), Carman Lee (1995), Fann Wong (1998), Jacklyn Wu (1998), Liu Yifei (2006) and Michelle Chen (2014).