Martin is an interesting pet name because it carries so much human weight. It's the name of a saint (St. Martin of Tours), a civil rights icon (Martin Luther King Jr.), and has been a steady mid-tier baby name for decades. Giving a pet a name with that much human history is either a tribute or an accidental collision depending on whether the owner thought it through. At rank 1037, it appears with some regularity, and the owners who choose it tend to want something solid and slightly unexpected.
The Human Name on a Pet
Martin as a human name derives from the Latin Martinus, from Mars, the Roman god of war, giving it a martial origin that its gentle contemporary image largely obscures. For a pet, that etymology is probably irrelevant; the name reads as friendly and unpretentious, the kind of name a pleasant neighbor might have. It fits the same register as Walter or Bernard — human names given to pets without irony.
The Comedic Gap
Martin on a small fluffy dog works as a deadpan comedy name: the formality creates a gap between the name and the animal that some owners find delightful. Martin the Chihuahua or Martin the Persian cat has a distinct personality just from the combination. Browse Chihuahua names for the range of this comedic register.
Where It Works Naturally
On a calm, medium-sized male dog, Martin is just a good name: unhurried, warm, without any naming ambition. The human version lives at Martin with full etymology for those who want the backstory.