Smith : is an English Occupational name for man who works with metal, one of the earliest jobs for which specialist skills were required. It is a craft that was practiced in all countries, making the surname and its cognizants the most widely found of all occupational names in Europe. Medieval Smiths made horseshoes, plows, and items for the house. English variations are Smyth , and Smither ; German = Schmidt ; Flemish = De Smid ; Dutch = Smit ; Norwegian = Smidth ; Polish = Szmyt ; Czechoslovakian = Smid ; Jewish = Schmieder . Even the gypsies had the name: the Romany Petulengro translates to Smith

Source:  Broken Arrow Publishing