Barker is a surname that likely has roots in the occupation of a person who worked as a barker, a town crier or someone who announced important news or events in public. The name may also have originated from the word "bark," meaning the sound made by a dog or other animal. People with the surname Barker may have ancestors who were skilled orators or masters of communication. Barker may also have Scottish or English origins, as it is a common surname in these countries. Overall, the surname Barker suggests a connection to communication, announcements, or possibly even a connection to animals.