Cassidy for a female pet at rank 1200 lands at the intersection of Western Americana and 1990s pop-culture nostalgia. The name has enough range to suit a rescue dog named after Butch Cassidy's outlaw romance or a golden retriever named after the Grateful Dead song or the cheerful country energy of the name itself. All three readings work, and none of them are wrong.
The Western Register
Butch Cassidy — born Robert LeRoy Parker — made the name Cassidy permanently associated with the American outlaw tradition. The 1969 film Butch Cassidy and the Sundance Kid embedded the name in cultural memory as adventurous, charismatic, and fundamentally likable. Female pets named Cassidy often carry that same roguish warmth: the good dog who also ate something she shouldn't have.
The Music Connection
"Cassidy" is a Grateful Dead song from 1972, and Cassidy Adams was a baby who was the inspiration for it. The name circulates in Deadhead culture as something meaningful — joyful, free-spirited, road-appropriate. Border Collies and active mixed breeds that follow their owners on outdoor adventures suit this register naturally.
Human Name Background
The human Cassidy peaked for American girls in the late 1990s and early 2000s — it's currently in a quiet retro revival that makes it feel current rather than dated. On a pet it reads as friendly and distinctly American. Compare Clementine for a similar Western-vintage register. Browse all pet names for more Americana options.