Maxwell ranks #316 with 370 entries and is one of the strongest examples of a formal full-name being given to a pet who will be called Max ninety percent of the time. The name signals owner intent more than daily usage.
The Max-on-paper, Maxwell-in-life pattern
Owners who pick Maxwell over the simpler Max are usually buying gravitas. The full name shows up on the vet records, the microchip registration, and the framed adoption photo, while the everyday call is almost always the clipped form. This is the same human-naming logic where Elizabeth becomes Liz and James becomes Jim, applied to dogs.
Sound fit and breed lean
Three syllables (MAX-well), front-stressed, with the percussive X-cluster doing the recall work and the soft -well ending lending the formal weight. Labradors, Goldens, and larger gentleman-breed dogs wear Maxwell especially well, and the name pairs naturally with breeds that read mature even as puppies.
The Beatles counter-reading
One reading worth flagging: Maxwell's Silver Hammer (1969) gave the name a dark Beatles association that older owners sometimes consciously avoid. Most pet owners report the song reference is faint enough that it does not interfere with the dignified-formal reading. The human Maxwell page shows the name climbing on the SSA chart since the 1990s, with parents picking it for similar reasons.