Zhang Zuo (died 355), courtesy name Taibo, formally Prince Wei of (Former) Liang, is a ruler of the Chinese state Former Liang.

He is the only ruler of Former Liang to formally declare a break from Jin Dynasty (265-420), and historical sources variously report him as having declared himself an emperor (per Jin Shu) or a prince (per Zizhi Tongjian).

He is commonly viewed as a usurper (having seized the throne from his nephew Zhang Yaoling after his brother Zhang Chonghua's death) and initially not acknowledged as a Former Liang ruler, but his brother Zhang Tianxi later nevertheless gives him the posthumous name of Wei.