Ye Zhupei or Yap Chu-Phay (Chinese: 叶渚沛; 1902 – 24 November 1971) was a Chinese physical chemist, chemical engineer, and metallurgist. Born into an overseas Chinese family in the Philippines and educated in the United States, he moved to China in the 1930s and served in both the Kuomintang and the Communist governments. Considered the founder of chemical metallurgy in China, he was elected a founding member of the Chinese Academy of Sciences (CAS) in 1955 and established the Institute of Chemical Metallurgy (now Institute of Process Engineering) of the CAS in 1958. He was persecuted during the Cultural Revolution and died in prison after five years of incarceration.