Su Yu () (August 10, 1907 – February 5, 1984) was a Chinese Communist military leader. He was considered by Chinese Communist Leader Mao Zedong to be among the best commanders of the PLA only next to Lin Biao and Liu Bocheng. Su Yu fought in the Second Sino-Japanese War and in the Chinese Civil War. He commanded the East China Field Army (renamed 3rd Field Army in 1949) during the Chinese Civil War.