Chen Jiangong (simplified Chinese: 陈建功; traditional Chinese: 陳建功; pinyin: Chén Jiàngōng) (1893–1971), or Jian-gong Chen, was a Chinese educator, mathematician and pioneer of modernizing Chinese mathematics. He was the dean of Department of Mathematics, National Chekiang University (Zhejiang University), and an academician of Academica Sinica (1948 election) and Chinese Academy of Sciences (1955 election).
Born in Shanying County, Shaoxing, Zhejiang Province during the late Qing dynasty, Chen studied in Shanying School and later in Shaoxing Prefecture School. 1910, he entered Zhejiang Advanced Normal School (a higher education institute of training teachers, later it was merged into Zhejiang University).
He went to Japan to continue his study. 1916, he graduated from Tokyo Institute of Technology (majored in textile technology) and Tokyo Academy of Physics (the predecessor of Tokyo University of Science).
In 1923, he graduated from Tohoku University, he then went back to China, became a lecture in Zhejaing Industrial School (later immerged into National Chekiang University). 1924, he went to Wuhan, Hubei Province, and became a professor in National Wuchang University (now Wuhan University).