Steinmetz is a German surname, meaning stonemasonPeople named Steinmetz Johann Adam Steinmetz (1689-1762), German Lutheran theologian Karl Friedrich von Steinmetz (1796-1877), Prussian field marshal Charles Proteus Steinmetz (1865–1923), German-American mathematician and electrical engineer Charles P. Steinmetz Academic Centre (Steinmetz High School, Chicago, IL), named for the handicapped inventor Steinmetz circuit, a method to use three phase motors with single phase AC, invented by Cha… (More on Steinmetz)