US rank #7599 Girls' name Peak 2009 2,412 births

Lillyan — #7599 US girls' name

2,412 babies named Lillyan in U.S. Social Security records since 1906, with the highest year being 2009. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1900s111910s1001920s891930s161990s582000s9892010s10322020s117
#7599
of 17,661 girls in use

More common than 57% of names given to girls today.

2010s
Peak decade

43% of everyone ever named Lillyan was born in this single decade.

2009
Single peak year

193 babies were named Lillyan in 2009 — its busiest year on record.

What the Data Says About Lillyan

The Social Security Administration has registered 2,412 babies named Lillyan between 1906 and 2024, spanning 119 consecutive years of U.S. birth records. As a girl's name, Lillyan currently holds the #7599 rank among girls for 2024. The name reached its historical peak in 2009, when 193 babies received it in a single year.

Decade-level aggregation shows that Lillyan performed strongest in the 2010s, accumulating 1,032 births during that ten-year window. Across the 8 decades of recorded activity, Lillyan shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Ohio, which accounts for 133 births — the largest state-level total in the dataset — followed by Texas and Indiana. In total, SSA state-level files list Lillyan in 28 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Lillyan in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 2,412 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Lillyan at a glance

Outside the top 1,000

Total births

2,412

Since 1906

119 years of records

Peak year

2009

193 births that year

Strongest decade: 2010s

Current rank

#7,599

Among girls

As of 2024

Active since

1906

Recorded for 119 years

Last year on file: 2024

Lillyan popularity over time

Annual U.S. births registered with the Social Security Administration · 2024–1906

Outside the top 1,000
Peak year (2009)
193
Annual births at peak — across 119 years of records
-50050100150200250 202420172010200319961927192019131906 5

Lillyan by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 2010s
Peak decade
2010s
1,032 births that decade — 43% of Lillyan's all-time total
1900s111910s1001920s891930s161990s582000s9892010s10322020s117

Lillyan by state

Where Lillyan concentrates geographically — total births since 1906

Geographically diffuse
Top 8 states by recorded births for the name Lillyan
Rank State Visual share Births Share of total
#1 Ohio
133 5.5%
#2 Texas
112 4.6%
#3 Indiana
109 4.5%
#4 California
104 4.3%
#5 Michigan
57 2.4%
#6 Pennsylvania
49 2.0%
#7 Missouri
48 2.0%
#8 Illinois
47 1.9%
Ohio share of Lillyan's total US births 5.5%
Even split

133 of 2,412 births nationwide. Compared to a flat distribution across 28 reporting states.

Lillyan appears in 28 states. Explore state details →

Frequently Asked Questions

How popular is the name Lillyan?
2,412 babies have been named Lillyan since 1906. It currently ranks #7599 among girls. The peak year was 2009 with 193 births.
When was Lillyan most popular?
Lillyan was most popular in the 2010s decade with 1,032 total births. The single peak year was 2009.
Where is Lillyan most popular?
The top states for the name Lillyan are Ohio (133 births), Texas (112 births), Indiana (109 births).
How long has the name Lillyan been used?
Lillyan has been recorded in Social Security data since 1906, spanning 119 years of data through 2024.
What names are similar to Lillyan?
Names with a similar sound or spelling include Lillian, Lily, Lillie, Lila, and 4 more. These share a common prefix and are also used for girls.

Keep exploring Lillyan

Nearby Names Like Lillyan

Names with a similar sound, spelling, or feel to Lillyan

Names with a similar popularity rank to Lillyan

Baby Name Guides

Learn more about naming trends and how to use data to choose a name

Explore more names

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1906–2024 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.