Bucky ranks at #618 with 199 entries, registered male. The name is a friendly old-fashioned American nickname with a hard percussive opening, and on a registry it reads as either the deer-coat-color descriptor or the Marvel sidekick reference, depending on the owner's age.
The two main reading paths
Older owners most often arrive at Bucky through the buckskin-coat-color lineage: a tan-and-white dog or horse-colored mutt with the visual of a young deer. The name has been in American rural-and-ranch use for decades in this register. Younger owners arrive through Bucky Barnes (the Winter Soldier), who has been a recurring Marvel character since 2011 and a fixture for Gen Z viewers. Both readings produce the same registered name.
The mascot inheritance
Bucky also carries a college-mascot register: Bucky Badger has been the University of Wisconsin's mascot since 1949, and Bucky the Bronco anchors several smaller programs. Wisconsin alumni households are noticeably overrepresented in the Bucky pet-naming pool, and the name often signals home-state affiliation as much as personality.
Sound and breed lean
Two syllables, front-stressed (BUK-ee), with a hard plosive opening that recalls cleanly across distance. The name lands disproportionately on medium-to-large friendly breeds with rural-aesthetic associations: Labradors, Beagles, hounds, and shelter mixes. The human Bucky page shows minimal SSA presence; pet Bucky owns the cultural space, and the name has never been a real human-name competitor.