Master is a title-as-name choice with an ironic domestic logic: the dog is named Master in full acknowledgment that the dog runs the house. It's also worth flagging as a probable registry artifact at this tier — "Master" appears on licensing forms in contexts where it may have been a title prefix ("Master [Name]") that was recorded without the accompanying given name.
The Title-Name Register
Dogs named with formal titles : General, Colonel, Master, Duke — represent a specific naming tradition that treats the animal as an authority figure or dignitary. Master is the most ambiguous of these, since it functions as a skill descriptor ("master of the house"), a formal address for a boy, and a reference to dominance. Any of these readings can be the actual intent. Compare General and Duke for adjacent choices in this category.
The Registry Artifact Dimension
At rank 2650 with 34 records across NYC and Seattle licensing data, Master sits in territory where some entries are almost certainly administrative artifacts — forms where "Master" was a title prefix for a child's dog registration rather than the pet's actual name. The genuine intentional uses still represent a real naming pattern; just fewer than 34 dogs are actually answering to Master.
The Counter-Reading: Who's Actually the Master
Anyone who has lived with a dog understands the cosmic joke. Great Danes and Dobermans carry the title most convincingly — breeds where the authority claim at least looks credible from across the room.