Lindsey is a name that peaked in American popularity in the 1980s and early 1990s — the -ey spelling variant of Lindsay, which itself derives from a Scottish place name. Pets named Lindsey were probably named by millennial owners who are honoring a formative friend, a beloved character, or simply the name they've always associated with warmth and familiarity from their childhood social landscape.
The 80s-90s Name Pet Cycle
A predictable pattern in pet naming: names that peak in human use get recycled into pet use about 20-30 years later, often by the generation that grew up surrounded by those names. Lindsey, Stacey, Tiffany, Tracy — these names appear in pet registries because they carry genuine warmth for owners who grew up with Lindseys in their lives. The -ey spelling specifically was more common in the 1980s than the -ay variant. Browse other female pet names in similar vintage registers.
Human-Pet Crossover
Lindsey as a human name has been declining in American registries since its 1980s peak, which ironically makes it more available and distinctive as a pet name. Names that have cleared the "too common in human use" threshold often find a second life in pet naming where they feel fresh again. The name's associations are uniformly positive — there are no major negative pop-culture Lindseys to contend with.
The Counter-Reading: Generational Specificity
Lindsey reads as a specific generation's name in a way that's impossible to ignore. It will always evoke the mid-1980s American female social landscape. For some owners that's the point; for owners who want a name that floats free of era, it lands with too much specificity.