The genealogy website found that Smith is by far the most common last name in the US, ranking first across 40 states and within the top three for another five states.. The name Smith harkens back ...

As for last names, the most common first letter is M (24,009). However, for as much as we have in common, unicorns do live among us. There are 7,889 unique first names and 12,866 unique last names ...