Thomasin — #12347 US girls' name
60 babies named Thomasin in U.S. Social Security records since 1963, with the highest year being 2023. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
More common than 30% of names given to girls today.
83% of everyone ever named Thomasin was born in this single decade.
16 babies were named Thomasin in 2023 — its busiest year on record.
What the Data Says About Thomasin
The Social Security Administration has registered 60 babies named Thomasin between 1963 and 2024, spanning 62 consecutive years of U.S. birth records. As a girl's name, Thomasin currently holds the #12347 rank among girls for 2024. The name reached its historical peak in 2023, when 16 babies received it in a single year.
Decade-level aggregation shows that Thomasin performed strongest in the 2020s, accumulating 50 births during that ten-year window. Across the 3 decades of recorded activity, Thomasin shows a stable profile with only moderate drift from its peak decade.
No etymological entry is currently available for Thomasin 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 60 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.
Thomasin at a glance
Outside the top 1,000Peak year
Current rank
Active since
Thomasin popularity over time
Annual U.S. births registered with the Social Security Administration · 2024–1963
- Peak year (2023)
- 16
- Annual births at peak — across 62 years of records
Currently ranks #12347 among girls.
60 total births across 62 years of SSA records. Peaked in 2023 with 16 births in a single year.
Thomasin by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 2020s
- 50 births that decade — 83% of Thomasin's all-time total
Thomasin decade highlights
- Peak decade 50 births
- Runner-up 5 births
- Modern era share 2010s + 2020s
- Decades tracked with recorded births
2020s was Thomasin's strongest decade
50 babies received the name during that ten-year window — about 83% of all-time use.
Frequently Asked Questions
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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, 1963–2024 (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.