Li Xin (李信), courtesy name Youcheng (有成), was a Chinese military general of Qin during the Warring States era. Alongside Wang Jian, Wang Ben and other generals, Li Xin served under Qin Shi Huang (Ying Zheng) in his conquest of the six Warring States. He is also the great-great-grandfather of Li Guang, a Han dynasty general.[1]