Maxi ranks at #715 with 168 entries, registered neutral. The name is the affectionate diminutive of Max, and on a pet registry it functions as the household-intimacy version of one of the most popular pet names in North America. Owners writing Maxi rather than Max are usually committing to the diminutive on the formal license itself.
The diminutive-as-formal-name pattern
Maxi sits with Maxie, Maxxie, and Maxx in the cluster of nickname-spelling Max variants on the licensing chart. The naming logic is almost always the same: the household always called the dog Maxi from the start, and the formal paperwork simply records what the family actually says. The neutral gender registration here (rather than Max's typical male skew) suggests a wider mix of female and neutral households making this specific spelling choice.
The European-import register
Maxi also carries a European-import register, particularly in German, Austrian, and Italian-American households where Maxi is the standard diminutive form and Max would feel terse. The naming logic in this slice connects the dog to family-language continuity, and the spelling choice signals heritage rather than just casualness.
Sound and breed lean
Two syllables, front-stressed (MAX-ee), hard X consonant cluster cutting cleanly into the open vowel. The shape recalls sharply outdoors. The name lands across breed types without strong concentration: small companion breeds, medium working dogs, and rescue mixes. The human Maxi page shows minimal American SSA presence; pet Maxi owns the call-name space.