Merwyn — boys' name
786 babies named Merwyn in U.S. Social Security records since 1912, with the highest year being 1937. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
37% of everyone ever named Merwyn was born in this single decade.
38 babies were named Merwyn in 1937 — its busiest year on record.
What the Data Says About Merwyn
The Social Security Administration has registered 786 babies named Merwyn between 1912 and 1971, spanning 60 consecutive years of U.S. birth records. As a boy's name, Merwyn currently falls outside the top 1,000 boys' names for 1971. The name reached its historical peak in 1937, when 38 babies received it in a single year.
Decade-level aggregation shows that Merwyn performed strongest in the 1930s, accumulating 288 births during that ten-year window. Across the 7 decades of recorded activity, Merwyn shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Illinois, which accounts for 20 births — the largest state-level total in the dataset — followed by Iowa and Pennsylvania. In total, SSA state-level files list Merwyn in 5 of the 51 U.S. reporting jurisdictions.
No etymological entry is currently available for Merwyn 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 786 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.
Merwyn at a glance
Last recorded 1971Peak year
Current rank
Active since
Merwyn popularity over time — boys
Annual U.S. births registered with the Social Security Administration · 1971–1912
- Peak year (1937)
- 38
- Annual births at peak — across 60 years of records
No longer in the modern top-1000 — last recorded 1971.
786 total births across 60 years of SSA records. Peaked in 1937 with 38 births in a single year.
Merwyn popularity over time — girls
10 total births recorded since 1917 (Merwyn as girls' name)
Unisex use remains the minority pattern
The girls' variant of Merwyn accounts for 1% of total recorded use across both genders.
Merwyn by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 1930s
- 288 births that decade — 37% of Merwyn's all-time total
Merwyn decade highlights
- Peak decade 288 births
- Runner-up 183 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
1930s was Merwyn's strongest decade
288 babies received the name during that ten-year window — about 37% of all-time use.
Merwyn by state
Where Merwyn concentrates geographically — total births since 1912
| Rank | State | Visual share | Births | Share of total |
|---|---|---|---|---|
| #1 | Illinois | | 20 | 2.5% |
| #2 | Iowa | | 11 | 1.4% |
| #3 | Pennsylvania | | 5 | 0.6% |
| #4 | Washington | | 5 | 0.6% |
| #5 | Wisconsin | | 5 | 0.6% |
20 of 786 births nationwide. Compared to a flat distribution across 5 reporting states.
Top 5 states
- Illinois 2.5% of nationwide
- Iowa 1.4% of nationwide
- Pennsylvania 0.6% of nationwide
- Washington 0.6% of nationwide
- Wisconsin 0.6% of nationwide
Recorded in 5 of 51 SSA jurisdictions
Illinois accounts for 2.5% of all recorded births nationwide — a relatively diffuse profile for this name.
Frequently Asked Questions
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Keep exploring Merwyn
Nearby Names Like Merwyn
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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, 1912–1971 (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.