Recorded 1912–2015 Girls' name Peak 1946 5,368 births

Dian — girls' name

5,368 babies named Dian in U.S. Social Security records since 1912, with the highest year being 1946. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1910s51920s601930s5791940s19781950s15371960s7161970s2051980s1491990s862000s482010s5
1940s
Peak decade

37% of everyone ever named Dian was born in this single decade.

1946
Single peak year

287 babies were named Dian in 1946 — its busiest year on record.

What the Data Says About Dian

The Social Security Administration has registered 5,368 babies named Dian between 1912 and 2015, spanning 104 consecutive years of U.S. birth records. As a girl's name, Dian currently falls outside the top 1,000 girls' names for 2015. The name reached its historical peak in 1946, when 287 babies received it in a single year.

Decade-level aggregation shows that Dian performed strongest in the 1940s, accumulating 1,978 births during that ten-year window. Across the 11 decades of recorded activity, Dian shows a clear decline from its mid-century high. Geographically, the name is most concentrated in California, which accounts for 480 births — the largest state-level total in the dataset — followed by Texas and Pennsylvania. In total, SSA state-level files list Dian in 33 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Dian 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 5,368 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.

Dian at a glance

Last recorded 2015

Total births

5,368

Since 1912

104 years of records

Peak year

1946

287 births that year

Strongest decade: 1940s

Current rank

Unranked

Outside the modern top-1,000

As of 2015

Active since

1912

Recorded for 104 years

Last year on file: 2015

Dian popularity over time — girls

Annual U.S. births registered with the Social Security Administration · 2015–1912

Last recorded 2015
Peak year (1946)
287
Annual births at peak — across 104 years of records
-1000100200300400 201519961985197419631952194119301912 5

Dian popularity over time — boys

198 total births recorded since 1952 (Dian as boys' name)

Unisex variant — 198 births
0510152025 202420212018201520112008200319911952 5

Dian by decade

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

Peak: 1940s
Peak decade
1940s
1,978 births that decade — 37% of Dian's all-time total
1910s51920s601930s5791940s19781950s15371960s7161970s2051980s1491990s862000s482010s5

Dian by state

Where Dian concentrates geographically — total births since 1912

Geographically diffuse
Top 8 states by recorded births for the name Dian
Rank State Visual share Births Share of total
#1 California
480 8.9%
#2 Texas
295 5.5%
#3 Pennsylvania
247 4.6%
#4 New York
233 4.3%
#5 Ohio
222 4.1%
#6 Michigan
204 3.8%
#7 Illinois
192 3.6%
#8 Indiana
115 2.1%
California share of Dian's total US births 8.9%
Even split

480 of 5,368 births nationwide. Compared to a flat distribution across 33 reporting states.

Dian appears in 33 states. Explore state details →

Frequently Asked Questions

How popular is the name Dian?
5,368 babies have been named Dian since 1912. It was last recorded in 2015. The peak year was 1946 with 287 births.
When was Dian most popular?
Dian was most popular in the 1940s decade with 1,978 total births. The single peak year was 1946.
Where is Dian most popular?
The top states for the name Dian are California (480 births), Texas (295 births), Pennsylvania (247 births).
How long has the name Dian been used?
Dian has been recorded in Social Security data since 1912, spanning 104 years of data through 2015.
What names are similar to Dian?
Names with a similar sound or spelling include Diane, Diana, Dianne, Dianna, and 4 more. These share a common prefix and are also used for girls.

Keep exploring Dian

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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, 1912–2015 (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.