Carnahan — Family Name, Records and Arms

7,424 Americans were listed as Carnahan in the 2010 census. That puts it among the top 5,000 US surnames. Standard surname dictionaries do not settle the origin of Carnahan, so we research it family by family rather than guess.

What can public data say about the Carnahan family name? Quite a lot.

There is no single Carnahan family crest for all bearers; the honest first step is to find out which Carnahan line, if any, bore arms. For the full story, order the Carnahan surname pack.