Total births
6
Recorded 2003–2003 Boys' name Peak 2003 6 births
Sein — boys' name
6 babies named Sein in U.S. Social Security records since 2003, with the highest year being 2003. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
The verdict
6 boys have been named Sein since 2003, peaking in the 2000s, last recorded in 2003.
- 6
- total births
- 2003–2003
- years on record
- 2000s
- peak decade
- 100%
- born in that decade
2000s
Peak decade
100% of everyone ever named Sein was born in this single decade.
2003
Single peak year
6 babies were named Sein in 2003 — its busiest year on record.
What the Data Says About Sein
The Social Security Administration has registered 6 babies named Sein between 2003 and 2003, spanning 1 consecutive years of U.S. birth records. As a boy's name, Sein currently falls outside the top 1,000 boys' names for 2003. The name reached its historical peak in 2003, when 6 babies received it in a single year.
Decade-level aggregation shows that Sein performed strongest in the 2000s, accumulating 6 births during that ten-year window.
No etymological entry is currently available for Sein 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 6 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.
Sein at a glance
Last recorded 2003Peak year
2003
Current rank
Unranked
Active since
2003
Sein popularity over time
Annual U.S. births registered with the Social Security Administration · 2003–2003
- Peak year (2003)
- 6
- Annual births at peak — across 1 years of records
Sein by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 2000s
- 6 births that decade — 100% of Sein's all-time total
Frequently Asked Questions
How popular is the name Sein? ▼
6 babies have been named Sein since 2003. It was last recorded in 2003. The peak year was 2003 with 6 births.
When was Sein most popular? ▼
Sein was most popular in the 2000s decade with 6 total births. The single peak year was 2003.
How long has the name Sein been used? ▼
Sein has been recorded in Social Security data since 2003, spanning 1 years of data through 2003.
What names are similar to Sein? ▼
Names with a similar sound or spelling include Seiji, Seif, Seichi, Seith, and 4 more. These share a common prefix and are also used for boys.
Keep exploring Sein
Nearby Names Like Sein
Names with a similar sound, spelling, or feel to Sein
Seiji Boy
#9068 517 births
Seif Boy
#10363 275 births
Seichi Boy
171 births
Seith Boy
125 births
Seiya Boy
#8631 112 births
Compare Sein side by side: Sein vs Seiji Sein vs Seif Sein vs Seichi
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Names with a similar number of total births
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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, 2003–2003 (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.