Lei Chen (Chinese: 雷震; pinyin: Léi Zhèn; 8 July 1897 – 7 March 1979) was a Chinese politician and dissident who was the early leading figure in the movement to bring fuller democracy to the government of the Republic of China. Born in Zhejiang in 1897, Lei was educated at Kyoto Imperial University in Japan. His early political career included posts as the secretary-general of the and . He also served on the Control Yuan, as minister without portfolio, and presidential adviser.