Heinrich Frey (June 15, 1822–January 17, 1890) was a German-born Swiss entomologist who studied Lepidoptera. He was born in Frankfurt am Main, Germany, and died in Zurich, Switzerland.He is not to be confused with the dipterist Richard Karl Hjalmar Frey or with the early Pennsylvania pioneer, Heinrich Frey, who is considered one of the first two German immigrants to the American Colonies see Fry family.