Lilly
Gender: Girl
Meaning: Lily flower, purity
Origin: English (variant)
Popularity: Ranked #252 in 2025 with 1,218 babies born.
History: Lilly surged in the 2000s-2010s as one of the most popular flower names in America. The double-L distinguishes it from Lily. Eli Lilly and Company, the pharmaceutical giant, is headquartered in Indianapolis — one of America's largest corporations. The name represents America's love affair with botanical naming, and the slight spelling variation that lets parents feel their child's name is uniquely theirs.
Name length: 5 letters
How common is Lilly? About 1 in 2,733 babies born in 2025 were named Lilly, or roughly 3.3 per day in the United States.
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Frequently asked about Lilly
What does the name Lilly mean?
Lilly means “Lily flower, purity” from English (variant) roots.
What is the origin of the name Lilly?
Lilly has English (variant) origin. The traditional meaning is “Lily flower, purity”.
How popular is Lilly?
Lilly ranked #252 in 2025 — given to 1,218 babies that year.
When was Lilly most popular?
Lilly peaked in 2010 with 2,890 babies registered that year.
Is Lilly a boy or girl name?
Lilly is predominantly a girls' name — over 90% of Lillys in registered births are female.
Is the name Lilly rising or falling in popularity?
Lilly has fallen 23 spots in the rankings over the last 5 years — from #229 in 2020 to #252 in 2025.
How long has Lilly been recorded?
Lilly appears in birth records across 146 years — from 1880 through 2025.