Edgar Fahs Smith (May 23, 1854 – May 3, 1928) was an American scientist who is best known today for his interests in the history of chemistry. He served as provost of the University of Pennsylvania from 1911 to 1920, was deeply involved in the American Chemical Society and other organizations, and was awarded the Priestley Medal in 1926.
He accumulated a large collection of pictures, books, and papers related to the history of chemistry, which today forms the nucleus of the Edgar Fahs Smith Memorial Collection at the University of Pennsylvania. The collection was designated as a National Historic Chemical Landmark on March 16, 2000.