Lilly

Lilly is a variant spelling of Lily, derived from the Latin lilium and ultimately from the Greek leirion. The lily flower has been a symbol of purity, beauty, and renewal across ancient Greek, Roman, and Christian traditions. As a name, Lilly carries all that floral freshness — delicate on the surface, but with roots that go deep.

Lilly ranks #115 among the most popular pet names in America, part of the enduring wave of flower names that owners gravitate toward for their sweetness and visual imagery. There is something inherently cheerful about this name — it conjures white blooms and sunny days, which is perhaps why it suits pets who bring that same brightness into a home. The double-L spelling gives it a slightly softer, more whimsical feel than the single-L Lily, and both versions remain perennial favorites.