Ernest Nash (September 14, 1898, in Potsdam, Germany – May 18, 1974 in Rome, Italy) was a student of Roman architecture and pioneer of archaeological photography. Nash was born as Ernst Nathan in Potsdam, Germany, but later changed his name to Nash when he was living in the United States between 1939 and 1952. He was a graduate of the University of Jena and had a law office in his native city of Potsdam, Germany.