1) One should not call oneself, or one’s child, by a non-Jewish name.

2) Some say that this is only if one calls himself by a specifically gentile name. But if he merely translates his Jewish name to its equivalent in another language, it is permitted.

3) Others find reason to permit calling oneself by a non-Jewish name.

4) People who already have non-Jewish names, and later were given Jewish names, are permitted to continue using their non-Jewish names when doing business with people who know them only by their non-Jewish names.