Girl · #13,458 in 2026

Tamzin

Thomasina, Thomasine, or Thomasena is the feminine form of the given name Thomas, which means "twin". Thomasina is often shortened to Tamsin. Tamsin can be used as a name in itself; variants of Tamsin include Tamsyn, Tamzin, Tamsen, Tamzen, Tammi, Tamzie and Tamasin. The version "Tamsin" is especially popular in Cornwall and Wales. Along with Tamara it is the ancestor of "Tammy".

Current Rank
#13,458
Peak Rank
#7,839 (2017)
Total Babies
80
5-Yr Trend
Stable
2011
First Year
2021
Last Year
2017
Peak Year
#7839
Peak Rank
80
Total Count
10
Years Active

Meaning & Origin of Tamzin

What this name means, where it came from, and how it has traveled across cultures.

Thomasina, Thomasine, or Thomasena is the feminine form of the given name Thomas, which means "twin". Thomasina is often shortened to Tamsin. Tamsin can be used as a name in itself; variants of Tamsin include Tamsyn, Tamzin, Tamsen, Tamzen, Tammi, Tamzie and Tamasin. The version "Tamsin" is especially popular in Cornwall and Wales. Along with Tamara it is the ancestor of "Tammy".

Source: Wikipedia (CC BY-SA 3.0). Read more →

The Story of Tamzin

Tamzin first appeared in U.S. Social Security Administration records as a baby girl name in 2011, with 6 babies given the name that year. Its peak popularity came in 2017, when 14 Tamzins were born — ranking #7,839 that year. As of 2026, Tamzin ranks #13,458 for baby girls with 6 births, with steady use. In total, more than 80 Tamzins have been born in the U.S. since records began in 1880, spanning the 2010s through the 2020s.

Popularity Over Time

Popularity by State

ME
WA
MT
ND
MN
WI
MI
NY
VT
NH
MA
OR
ID
SD
IA
IL
IN
OH
PA
NJ
CT
RI
CA
NV
WY
NE
MO
KY
WV
VA
MD
DE
DC
UT
CO
KS
AR
TN
NC
SC
AK
AZ
NM
OK
LA
MS
AL
GA
HI
TX
FL
Top 10
11-50
51-100
101-500
500+
No data

Where is Tamzin most common?

Predicted country distribution based on naming patterns globally.

  • BW
    31%
  • LY
    20%
  • South Africa
    19%
  • Denmark
    17%
  • Singapore
    13%

Source: Nationalize.io . Probabilities are global naming-pattern estimates, not strict counts.

Names that sound like Tamzin

Phonetically similar names — useful when Tamzin is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.

Source: Datamuse . Phonetic similarity ranking, not curated.

Frequently Asked Questions about Tamzin

What does the name Tamzin mean?
Thomasina, Thomasine, or Thomasena is the feminine form of the given name Thomas, which means "twin". Thomasina is often shortened to Tamsin. Tamsin can be used as a name in itself; variants of Tamsin include Tamsyn, Tamzin, Tamsen, Tamzen, Tammi, Tamzie and Tamasin. The version "Tamsin" is especially popular in Cornwall and Wales. Along with Tamara it is the ancestor of "Tammy".
How popular is Tamzin in 2026?
In 2026, Tamzin ranks #13,458 among girls' names in the U.S., with 6 babies given the name that year.
When was Tamzin most popular?
Tamzin reached its peak popularity in 2017, ranking #7,839 that year with 14 babies given the name.
Is Tamzin a unisex name?
In U.S. Social Security records, Tamzin is primarily a girl's name. We don't have meaningful data for it as a boy's name.
What names go well with Tamzin?
Names that share a similar style or popularity range with Tamzin include Intisar, Elania, Erisha. These pairings are based on rank proximity and naming era in U.S. data.

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About the name Tamzin

Tamzin is a girl baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 2011 and has accumulated 80 births in the dataset. Tamzin's peak popularity came in 2017 when it ranked #7,839. Use the chart and map above to compare Tamzin's trajectory across years and U.S. states, or browse the related names section to discover similar choices.

Continue exploring

Data sources

  • Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
  • Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
  • Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
  • Predicted nationality distribution — Nationalize.io .
  • Phonetically similar names — Datamuse .

Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.