Zhang Dingcheng (simplified Chinese: 张鼎丞; traditional Chinese: 張鼎丞; pinyin: Zhāng Dǐngchéng; Pe̍h-ōe-jī: TiuⁿTiaⁿ-seng; December 1898 – December 16, 1981) was a military leader, revolutionary and politician of the People's Republic of China, procurator–general of the Supreme People's Procuratorate from 1954 to 1975.

He graduated as a schoolteacher from the teachers college of Dapu County, Guangdong, and taught at primary schools.

While teaching at the Qingxi Baoxu Temple primary school in Dapu County, he discovered Marxism, participated in revolutionary activities and joined the Chinese Communist Party (CCP) in 1927.

[1] He commanded units of the Chinese Red Army (predecessor of the People's Liberation Army), studied at the CCP Central Party School and took part in the Long March, accompanying Mao to Yan'an.

During the Cultural Revolution he was publicly denounced by some Red Guard groups, but his loyalty to Mao ensured that he remained in his place.