Zhang Chujin (Chinese: 張處瑾) (died 922) was a ruler of Chengde Circuit (成德, headquartered in modern Shijiazhuang, Hebei, also known as Zhao) early in the Chinese Five Dynasties and Ten Kingdoms period. His father Zhang Wenli had taken over the circuit after a mutiny that Zhang Wenli encouraged resulted in the death of Zhang Wenli's adoptive father Wang Rong the Prince of Zhao in 921. Zhang Wenli subsequently died during the campaign waged by Wang Rong's ally Li Cunxu the Prince of Jin to avenge Wang Rong. Zhang Chujin took over the leadership of the circuit after Zhang Wenli's death and tried to hold out against Jin forces, but was captured and killed in 922.