Cool

Proper noun

 * 1) ;, anglicized form of McCool.
 * 1) ;, anglicized form of McCool.

Statistics

 * According to the 2010 United States Census, Cool is the 6801st most common surname in the United States, belonging to 4958 individuals. Cool is most common among White (90.56%) individuals.

Etymology 1
.

Etymology 2
First attested as coele in 1281-1284. Potentially derived from.