法正
Liu Ba (died 222), courtesy name Zichu, was an official in the state of Shu Han during the Three Kingdoms period of China. He originally served under the warlord Liu Zhang before becoming a subordinate of Liu Bei (the founding emperor of Shu) after Liu Zhang's surrender to Liu Bei in 214. Liu Ba was instrumental in helping Liu Bei reward his subordinates from the treasury without impoverishing the common people after their conquest of Yi Province. Liu Ba also helped write the "Shu Ke" (), the legal code of Shu, along with Zhuge Liang, Fa Zheng, Li Yan and Yi Ji. Liu Ba succeeded Fa Zheng as the Prefect of the Masters of Writing in 220 and held office until his death in 222.