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© 2026 Namesake · namesake.baby

Data: Social Security Administration, US births 1880–2024

Tamsin — Meaning, Origin & Popularity | Namesake
All names
Tamsen|Tamsyn
CelticGirl↓ Fading

Tamsin

TAM-sin · 2 syllables

Share Tamsin:
Compare with another name
Girl
#13291
↓ Fading
#13291
in the US · 2024
Popularity score: 4
Peak rank
#6055 in 2020
5yr change
-1230 ranks
Birth frequency
1.9 per 1,000,000 births
Sex split
0% boy · 100% girl

Popularity Over Time

↑ Higher on this chart = more popular · ↓ Lower = less popular

Average0255075100Popularity score (0–100)20202024

Rank #13291 · Falling since 2020

How Popular Is This Name?

Bars show the range of popularity for each group. The dot shows where this name sits. Further right = more popular.

All US girl names
Top 200 girl names
Celtic girl names
Tamsin

Popularity score: 4  ·  SSA Rank: #13291

Rare  ·  Distinctive  ·  Familiar  ·  Common  ·  Very Common

Popularity score: 0 = least popular, 100 = most popular. Based on SSA rank.

Namesake Score
40
Higher than 40% of names
Combines uniqueness, trend, meaning, feasibility, and search interest.
Trend
↓ Fading
-1230 ranks
Based on SSA rank velocity
Feasibility
Limited
.com taken · — · clear
Low friction, available
Uniqueness
55
28 per 10,000 births
Won't be common in class

Tamsin scores lower overall — the popularity trend is fading.

Meaning Depth37% of score
60
Name Trend28% of score
32
Uniqueness20% of score
55
Feasibility15% of score
50

Scores are percentile-ranked across 43,000+ names.

Name DNA
CelticCornishGirl2-syllableVintageRareNature-adjacentBritishLiterary
Character
quiet determinationartistic sensibilityindependent spiritthoughtful natureunderstated strength
People with this name

Qualities shared by notable Tamsins

versatileintelligentcompellingdedicatednuanced
STRONG
High confidence

Tamsin is a Celtic girl name with cooling SSA momentum. It ranked #13291 in the US in 2024.

Trend:↓ Fading · -1230 ranks
Feasibility:.com taken · — · clear
Popularity:#13291 · very rare
Tamsin at a Glance
Meaning:From Cornish 'tam' (dark) and 'sin' (female), or possibly a diminutive form of Thomasina meaning 'little Thomas'
Language root:Cornish · Celtic
Peak rank:#6055 in 2020
5yr change:-1230 ranks
Sex usage:0% boy · 100% girl
Notable bearers
Tamsin Greig
British actress
Tamsin Egerton
British actress
Similar Sound
TamaraTamsynTamasinTessaTansy
Similar Style
CoraIrisHazelFreyaWinonaElowen
Works well with
IrisHazelFreyaCoraIvyRowan◈
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Freya
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Winona
English · #738
↑↑ Surging
Elowen
Celtic · #898
↑↑ Surging
Source: Social Security Administration baby names data. Popularity data reflects US births. Feasibility data updated monthly.
Name Intelligence
Tamsin · Overview
Summary

Tamsin is a Celtic girl name with cooling SSA momentum. It ranked #13291 in the US in 2024.

Strengths
Vintage character
Tamsin carries a cool, grounded quality that makes it distinctive without being invented.
Considerations
Popularity declining
Rank has dropped 1230 positions in the last year. Consider whether this trajectory matters for your decision.
Domain taken
tamsin.com is not available. Alternative TLDs may work.
Explore

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Data source:Social Security Administration
Coverage:US births 1879–2024
Updated:January 2025
ISR:Refreshes monthly
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