Is Lilly a boy or girl name?

Lilly is primarily a girl name in U.S. records: about 100% of recorded births are female.

What is the average age of someone named Lilly?

The average Lilly alive today is an estimated 19 years old. People named Lilly were most often born around 2010.

When was the name Lilly most popular?

Lilly peaked in 2010 with 2,891 recorded births in the United States.

What vibe does the name Lilly have?

In one report's words: botanical, noughties, cordial. Lilly ranks #922 among all U.S. first names since 1880.

Lilly — Name Meaning, Age & Vibe | Understand Your Name

UNDERSTAND YOUR NAME

Origin & Meaning

AI-Written

An English floral name that developed alongside Lily and long served as a pet form of Elizabeth or Lillian. The double-consonant variant appeared in nineteenth-century birth records before seeing a massive revival in the United States around the turn of the twenty-first century.

Also answers toLil, Lils

Fig. 1 — Births per annum, 1880–2025

SSA Data

1880 peak: 2,891 souls, A.D. 2010 2025

2025: 1,218 born, falling ↘

Estimated Age

19 yrs

Most Lillys were born around 2010 — learned to read on a touchscreen.

Peak Reign

2010

№106 that year

Generation

Gen Z, 49%

then Gen Alpha 41% · Boomer 4%

Rarity

Top 2000 all-time

≈67K ever born · now falling

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Estimates from SSA birth records and standard survival rates. Immigration and name changes not counted.

Lilly grew up with

SSA Data

TikTok·Among Us·Zoom school

Generation Distribution — Living Lillys

SSA Data

Silent 2%Boomer 4%Gen X 2%Millennial 3%Gen Z 49%Gen Alpha 41%

Data vs. Humans

What the data says

SSA Data

SSA: Lilly peaked in 2010.

Estimated average age: 19.

What people think

Opinion Ledger

Awaiting human data — cast the first votes.

Lilly sounds like someone born in —

Fig. 2 — Style Coordinates

AI Seed · Votes Override at n=30

Vintage Modern

Formal Casual

Soft Strong

Cast your vote No account · one tap

In your mind, Lilly sounds more like a —

Voting opens when the ledger goes live. No account. 24h cooldown per question.

Public Opinion Ledger

Ledger Opens Soon

The public has not yet weighed in on Lilly. Early ballots carry the most weight.

First Impressions

AI-Written

The name reads as friendly, bright, and distinctly modern in its social center of gravity. Hearing it today usually brings to mind someone born during the late 2000s or early 2010s rather than a Victorian matriarch. It carries none of the formal stiffness of longer ancestral names. The average bearer is nineteen years old.

Field Notes

AI-Written

Field Note 01

Combined, Gen Z and Gen Alpha make up ninety percent of all living Americans with the name.

Field Note 02

The spelling reached its peak in 2010, when about three thousand girls received it in a single year.

Field Note 03

Although recorded continuously since 1880, the name spent most of the twentieth century in deep reserve before its post-2000 resurgence.

Notable Lillys

AI-Written

Lilly Pulitzerfashion designer, b. 1931

Lilly Wachowskifilmmaker, b. 1967

Lilly Singhentertainer and host, b. 1988

Lilly KingOlympic swimmer, b. 1997

Adjacent Names

Lily · Lillian · Chloe · Mia · Ella · Ruby · Piper

Ephemera — If Lilly were a…

AI-Written

City

Burlington, Vermont

Color

Buttercup yellow

Object

Spiral-bound planner

And what of your name?