The most common surnames in the United States in order, are Smith, Johnson, Williams, Jones, and Brown.
A surname is a name added to a given name and in many cases, a surname is a family name.
In Western countries, a surname is also known as a “last name”, but in many countries in Asia, the family name, or surname, comes before the person’s first name.
In Iceland, however, most people do not use family names. Instead, a person’s surname indicates the first name of the person’s father.