Dorian G.W. Smith was a Canadian mineralogist and professor in the Department of Geology at the University of Alberta in Edmonton. Smith was born in London, England where he served in the Royal Air Force and attended University College London before completing a PhD at Cambridge in 1963. Smith subsequently completed a Master of Science at the University of Alberta and accepted a teaching position in the Department of Geology in 1966.

While at the University of Alberta, Smith taught mineralogy and acted as the curator of mineral and meteorite collections. He also helped to establish an electron microprobe laboratory and developed a software database used for the identification of minerals known as MinIdent, which is still used worldwide by mining companies and academic institutions. Smith's research focused on "K/Ar dating, clay mineralogy, meteoritics, X-ray spectroscopy, microanalysis, and computer applications" (Higgins, Dorian G.W. Smith). Smith remained at the University of Alberta until his retirement in 2000.

Smith was heavily involved with the geology and mineralogy community. He was an active member of the Mineralogical Association of Canada, where he held executive positions and acted as President from 1978-1979. Smith also traveled widely to collaborate with other geologists and mineralogists, attending and contributing to international conferences including the International Mineralogical Association. Even after retirement, Smith continued to contribute to his field by developing codes for unnamed minerals as part of the International Mineralogical Association's Commission on New Minerals, and by continuing to update and maintain MinIdent.