The name Earl is a boy's name of English origin. Earl and is often added to lists like Old People Names and discussed in our forums with posts like "A brother or sister for little Jack or Olivia - with middles!".
From the experts:
Earl is a title name - brought to England by the vikings - that's out of fashion right now, unlike King and Duke. Its peak popularity was in the 1920s, which gives it a dusty great-grandpa feel, but there are also younger Earls in pop culture, like the reformed criminal in "My Name is Earl".