Newt has two distinct source points that have both become more prominent in the 2010s: the amphibian (small, aquatic, and quietly fascinating) and Newt Scamander, the Magizoologist protagonist of Fantastic Beasts and Where to Find Them (2016). Either connection makes it a more considered choice than its brevity suggests.
The Fantastic Beasts Effect
J.K. Rowling's expansion of the Harry Potter universe brought Newt Scamander — a shy, passionate protector of magical creatures — to screens in 2016. Pet owners who are both Wizarding World fans and animal lovers found Newt an irresistible choice: it's a character who loves animals, named after an animal, in a franchise about animals. Axolotls and actual newts aside, the name works on any pet in a fantasy-enthusiast household.
The Amphibian Reading
Newts — small, semi-aquatic salamanders — are charming, unusual, and often overlooked. Naming a dog or cat after them signals an owner who finds beauty in the quiet and overlooked. The name is a gender-neutral monosyllable that functions beautifully in training contexts. Dachshunds, low to the ground and close to the earth, wear Newt with a kind of ecological appropriateness.
The Counter-Reading: Political Association
Newt Gingrich remains a prominent political figure in American memory. Owners who don't want political associations surfacing at the dog park should consider whether the Harry Potter or amphibian reading will dominate their social circle's interpretation.