Yang Changji (simplified Chinese: 杨昌济; traditional Chinese: 楊昌濟; pinyin: Yáng Chāngjì; 21 April 1871 – 17 January 1920) was a Chinese educator, philosopher, and writer. After advanced studies in Japan and Europe, he taught at Hunan First Normal University, where he exerted considerable influence on Mao Zedong, Cai Hesen, Xiao Zisheng, and others, and then at Peking University. He became considered one of the leading philosophers of his generation before his early death.