Liang Siyong (Chinese: 梁思永; Wade–Giles: Liang Ssu-yung; 13 November 1904 – 2 April 1954) was a Chinese anthropologist and archaeologist. He was deputy director of the Institute of Archaeology at the Chinese Academy of Sciences. One of the first scholars to introduce the discipline of archaeology to China, Liang is regarded as one of China's "first-generation archaeologists". He was the second son of the scholar Liang Qichao. Liang was married to Li Fuman, with whom he had one daughter. He died of a heart attack on 2 April 1954, at the age of 49.