Tigger ranks at #642 with 192 entries, registered male. The name is the bouncy tiger character from A.A. Milne's Winnie-the-Pooh stories (introduced 1928, animated by Disney from 1968 onward), and on a pet registry it lands almost exclusively as a direct character reference. Owners reaching for Tigger know exactly what they are picking.
The Pooh-character cohort
Tigger sits with Pooh, Eeyore, Piglet, and Roo in the Hundred Acre Wood pet-naming pocket. Within that group Tigger is the most popular pet pick because the character's bouncy, exuberant register matches dog-and-cat energy more directly than the more melancholy Eeyore or the introverted Piglet. The naming is deliberate character invocation, and most pet Tiggers are expected to live up to the bouncy register.
Owner-type and household
Pet Tigger lands disproportionately in households with small children, where the character is part of the family's media diet. The naming often happens collaboratively with kids who insist on the name during the adoption visit, and the dog or cat then carries the choice forward into adulthood. Owners are usually warm-natured and slightly nostalgic about their own Pooh-era childhoods.
Sound and breed lean
Two syllables, front-stressed (TIG-er), with a hard percussive opening and a soft trailing R. The shape is excellent for excited recall. The name lands on bouncy small-to-medium breeds with high energy: Jack Russells, Beagles, orange tabby cats (the visual match), and small mixed-breeds. The human Tigger page shows essentially no SSA presence; pet Tigger owns the cultural space without competition.