Luo Changpei

Luo Changpei (; 9 August 1899 – 13 December 1958) was a Chinese linguist. He made important contributions to the study of historical Chinese phonology. He was also a pioneer of the modern studies of Chinese dialects and of non-Chinese languages in China.

Born into a Manchu family, he graduated from the Peking University. Besides spending some years in the United States as a visiting scholar, he spent most of his academic life at Peking University. Among his students there were the British scholars Michael Halliday and David Hawkes. In 1929, along with Y.R. Chao and Li Fang-kuei, he became a researcher at the Institute of History and Philology (歷史語言研究所) of Academia Sinica (then located at Nanjing). He also served as director of the Institute of Linguistics at the Chinese Academy of Sciences until his death in 1958.

Luo also co-authored a book on the 'Phags-pa script with Cai Meibiao .