Liu Baixin ; born 10 June 1935) is a Chinese physicist.
Upon graduating from Tsinghua University in 1961, Liu began teaching there.[1] He was elected a fellow of the American Physical Society in 1998, "[f]or outstanding contributions to the understanding of amorphous alloy formation by ion beam mixing."[2] In 2001, Liu was elected an academician of the Chinese Academy of Sciences.[3]