Zhang Liao (張遼) (169 - 222) was a famous general during the Three Kingdoms Period in ancient China.

Styled Wenyuan; he gained fame when serving Cao Cao and fought at the Battle of Hefei with Li Dian and Yue Jin. He commanded 800 men and defeated the 100,000 men of Sun Quan while defending the city. Zhang Liao died of natural causes in the year AD 222 in Jiangdu County. Zhang Liao was known as a brave and intelligent commander, during the battle between Lü Bu and Cao Cao, Guan Yu ordered his brother Zhang Fei to beware of him and said Zhang Liao's battle skill equal to either one of Guan or Zhang. His personal friends included Guan Yu, Xu Huang, Xiahou Dun and Lord Cao Cao himself.

Zhang Liao had served Lu Bu previously, as well as Ding Yuan and Dong Zhou. In the Sanguo Zhi (Chronicles of the Three Kingdoms), he is noted as being the leader of the "Five Wei Generals", whom Chen Shou calls the "backbone of Wei". The others are Zhang He, Xu Huang, Yue Jin, and Yu Jin.