jews aren't Polish. They had no last names until a few hundred years ago. European practices required them to take last names, so they took them according to the countries where they currently lived - that is why you have German, Russian, and Polish sounding jew names.  Your ancestors didn't copy jews, it was the other way around. Exactly. There are really very few names that I can think of that are exclusively Ashkenazi Jewish, one of them is Cohen. Most Ashkenazi Jews (and therefore, most Jews, seeing as the Ashkenazi make up the vast majority of the world's Jewish population) just have Germanic or Slavic surnames.     Many Jews also tend to have names that have to do with precious metals or gemstones. Such as Goldsmith, Silversmith, Goldstein/Silverstein, Diamond, Ruby, Goldman, Silverman, etc... This is mainly just because they are occupational names, because many Jews used to be money-changers or jewelers, and of course, they still are. There are also some non-Jews who may have a name like Goldsmith because they had an ancestor who was a goldsmith or jeweler by occupation.