Abraham shows up 61 times in the NYC/Seattle pet registries — rank 1664 — and it's almost certainly a data artifact in part: owners who registered their dog under a Hebrew biblical name that they normally shorten to Abe. The full form Abraham carries enormous historical weight that is worth unpacking even if the dog answers to something else entirely.
The Biblical and Presidential Register
Abraham is the patriarch of three major world religions, and Abraham Lincoln is arguably the most mythologized figure in American political history. Combining religious patriarch and national hero in one name creates a gravity that most owners don't choose lightly. In pet naming, it reads as either deeply ironic (giving a tiny dog the weight of history) or as straightforward admiration. Lincoln and Moses occupy the same biblical-presidential register in the registry.
The Human-Name Crossover
On the human side, Abraham has been a consistent if infrequent presence in US naming data — never trendy, always serious. Pet owners who choose it are almost always drawn by the Lincoln association or by strong religious identification. The nickname Abe is friendlier and more functional for daily use.
The Counter-Read
Abraham is a formal name on a species that doesn't know its own name. Whether that formality reads as charming or absurd is entirely in the eye of the owner — but owners who choose it tend to have a strong point of view. It's not a neutral pick.