Earl is a vintage human name experiencing its second life as a pet name, carried along by the broader "old man name" trend that's seen Gus, Walter, and Bernard reclaimed as charming rather than dated. At rank 1278 in the registry, Earl is a low-key, confident choice that suggests the owner has a sense of humor and a fondness for things that have been around long enough to earn some dignity.
The Old Man Name Phenomenon
The appeal of Earl on a pet is the same as its appeal in human naming: it sounds both incongruous and deeply appropriate simultaneously. A small dog named Earl is inherently funny. A large, lumbering dog named Earl is completely earned. Basset hounds and English Bulldogs, breeds that already carry a middle-aged energy, are the natural recipients. The human name is tracked at /names/earl.
Cultural Anchors
Earl has several pop-culture touchpoints: Earl Hickey from My Name Is Earl (2005–2009, a lovable petty criminal), the Earl of Sandwich (the namesake of everyone's lunch), and a general association with Southern American vernacular culture. None of these is mandatory context, and the name works on its own, but they add layers for owners who want them.
The Counter-Reading
Earl is very deliberately unfashionable, which is both its charm and its limitation. Owners who want a name that reads as current or aspirational will find it too rooted in the past. Owners who want something that tells an interesting story in one syllable will find Earl delivers exactly that. Compare Duke or Gus for similar vintage-register options.