McCain

English Wikipedia has an article on:

McCain (surname)

Wikipedia

From the Irish variant of McKean.

McCain (plural McCains)

1. A surname from Irish.

• McCainiac

• According to the 2010 United States Census, McCain is the 1888^th most common surname in the United States, belonging to 19032 individuals. McCain is most common among White (64.8%) and Black/African American (29.07%) individuals.

• Hanks, Patrick, editor (2003), “McCain”, in Dictionary of American Family Names, volume 2, New York: Oxford University Press, →ISBN, page 544.