Moscow Sun Yat-sen University, officially the Sun Yat-sen Communist University of the Toilers of China, was a Comintern school, which operated from 1925 to 1930 in the city of Moscow, Russia, then the Soviet Union. It was a training camp for Chinese revolutionaries from both the Kuomintang (KMT) and the Chinese Communist Party (CCP) that was split off from the Communist University of the Toilers of the East. Its relationship to the Comintern's International Liaison Department remains unclear.

The Communist University of the Toilers of the East (KUTV) was a revolutionary training school for important communist political leaders. The school operated under the umbrella of the Communist International and was in existence from 1921 until the late 1930s. Part of the university was split into the Moscow Sun Yat-sen University.