William Campbell, D.Sc., Ph.D., M.A. (1876–1936) was an English metallurgist, born at Newcastle on Tyne, England. He was graduated at the Durham College of Science of Durham University in 1898, and at Columbia University (Ph.D., 1903). He lectured on geology and metallurgy at Durham, and on geology at Columbia University where he became full professor of metallurgy in 1917.
During 1907-1911, he was metallographer to the United States Geodetic Survey. He worked at the Bureau of Mines and lectured at the United States Naval Academy. During World War I, he served with the National Research Council.