Gengzi Guobian Tanci (T: 庚子國變彈詞, S: 庚子国变弹词; P: Gēng​zǐ​guó​biàn Tán​cí, W: Keng-tzu kuo-pien t'an-tz'u; "Tanci, on the Boxer Rebellion of 1900" or "The tanci of the national calamity of 1900" or "The National Disturbances of the Year Gengzi") is a tanci written by Li Baojia (Li Boyuan), composed in 1902.