Vaclav — boys' name
10 babies named Vaclav in U.S. Social Security records since 1915, with the highest year being 1915. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
50% of everyone ever named Vaclav was born in this single decade.
5 babies were named Vaclav in 1915 — its busiest year on record.
What the Data Says About Vaclav
The Social Security Administration has registered 10 babies named Vaclav between 1915 and 1921, spanning 7 consecutive years of U.S. birth records. As a boy's name, Vaclav currently falls outside the top 1,000 boys' names for 1921. The name reached its historical peak in 1915, when 5 babies received it in a single year.
Decade-level aggregation shows that Vaclav performed strongest in the 1910s, accumulating 5 births during that ten-year window. Across the 2 decades of recorded activity, Vaclav shows a stable profile with only moderate drift from its peak decade.
No etymological entry is currently available for Vaclav 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 10 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.
Vaclav at a glance
Last recorded 1921Peak year
Current rank
Active since
Vaclav popularity over time
Annual U.S. births registered with the Social Security Administration · 1921–1915
- Peak year (1915)
- 5
- Annual births at peak — across 7 years of records
No longer in the modern top-1000 — last recorded 1921.
10 total births across 7 years of SSA records. Peaked in 1915 with 5 births in a single year.
Vaclav by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 1910s
- 5 births that decade — 50% of Vaclav's all-time total
Vaclav decade highlights
- Peak decade 5 births
- Runner-up 5 births
- Decades tracked with recorded births
1910s was Vaclav's strongest decade
5 babies received the name during that ten-year window — about 50% of all-time use.
Frequently Asked Questions
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Keep exploring Vaclav
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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, 1915–1921 (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.