A name. A world of connections.

Tamsin

“twin”

feminineLatin script

No sourced pronunciation yet

Origin: Not established
2 language contexts: English Danish
Follow the evidence: 9 cited sources Source-reported

01 / Meaning & origin

About Tamsin

Tamsin is a feminine given name documented in English and Danish. English Wiktionary records an etymology for it. It is a form of Thomas, for which English Wiktionary gives the meaning “twin”.

Meaning in the sources

Source-reported

Meaning: “twin”

A medieval contraction of Thomasina, a feminine form of Thomas, revived in the UK in the twentieth century.

Sources for this account (6)

Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-15
Greek Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-15
Polish Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Russian Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Turkish Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Wiktionary: ThomasCC-BY-SA-4.0 · retrieved 2026-10-15

02 / Across borders

Where Tamsin is used

Explore published naming statistics and documented language connections around the world.

The name atlas

Across borders

countries in our sources

Select a country to follow Tamsin’s connections around the world.

4 countries with published statistics. Language records show cultural connections; they do not measure how common a name is.

Selected country

United States

Statistics + language records

United States, 2024: 7 girls (rank 12161). Documented as a given name in English.

Explore United States

4 of 11 countries

03 / By the numbers

Popularity over time

Follow the spelling through the years, one published dataset at a time.

United States

1880–2025 Spelling: Tamsin

Region and dataset

Recorded category girls

Latest · 2024: 7; applications; Rank #12,161
Peak year: 2017; 27 applications

Hover to explore a year. Use arrow keys when a chart point has focus.

Source: US Social Security Administration; redistributed by nkrishnaswami · SSA national baby names, 1880–2025 (CC0 redistribution)

Integer application counts retained without rounding.

Per million is unavailable: this source has no matching published total.

Show the data table

Tamsin in United States, girls: applications and rank by year
Year	Applications	Rank	Status
1880	no value	no value	not covered
1881	no value	no value	not covered
1882	no value	no value	not covered
1883	no value	no value	not covered
1884	no value	no value	not covered
1885	no value	no value	not covered
1886	no value	no value	not covered
1887	no value	no value	not covered
1888	no value	no value	not covered
1889	no value	no value	not covered
1890	no value	no value	not covered
1891	no value	no value	not covered
1892	no value	no value	not covered
1893	no value	no value	not covered
1894	no value	no value	not covered
1895	no value	no value	not covered
1896	no value	no value	not covered
1897	no value	no value	not covered
1898	no value	no value	not covered
1899	no value	no value	not covered
1900	no value	no value	not covered
1901	no value	no value	not covered
1902	no value	no value	not covered
1903	no value	no value	not covered
1904	no value	no value	not covered
1905	no value	no value	not covered
1906	no value	no value	not covered
1907	no value	no value	not covered
1908	no value	no value	not covered
1909	no value	no value	not covered
1910	no value	no value	not covered
1911	no value	no value	not covered
1912	no value	no value	not covered
1913	no value	no value	not covered
1914	no value	no value	not covered
1915	no value	no value	not covered
1916	no value	no value	not covered
1917	no value	no value	not covered
1918	no value	no value	not covered
1919	no value	no value	not covered
1920	no value	no value	not covered
1921	no value	no value	not covered
1922	no value	no value	not covered
1923	no value	no value	not covered
1924	no value	no value	not covered
1925	no value	no value	not covered
1926	no value	no value	not covered
1927	no value	no value	not covered
1928	no value	no value	not covered
1929	no value	no value	not covered
1930	no value	no value	not covered
1931	no value	no value	not covered
1932	no value	no value	not covered
1933	no value	no value	not covered
1934	no value	no value	not covered
1935	no value	no value	not covered
1936	no value	no value	not covered
1937	no value	no value	not covered
1938	no value	no value	not covered
1939	no value	no value	not covered
1940	no value	no value	not covered
1941	no value	no value	not covered
1942	no value	no value	not covered
1943	no value	no value	not covered
1944	no value	no value	not covered
1945	no value	no value	not covered
1946	no value	no value	not covered
1947	no value	no value	not covered
1948	no value	no value	not covered
1949	no value	no value	not covered
1950	no value	no value	not covered
1951	no value	no value	not covered
1952	no value	no value	not covered
1953	no value	no value	not covered
1954	no value	no value	not covered
1955	5	5,828	observed
1956	8	4,467	observed
1957	no value	no value	not covered
1958	no value	no value	not covered
1959	no value	no value	not covered
1960	no value	no value	not covered
1961	6	5,851	observed
1962	6	5,860	observed
1963	no value	no value	not covered
1964	no value	no value	not covered
1965	no value	no value	not covered
1966	no value	no value	not covered
1967	no value	no value	not covered
1968	5	7,016	observed
1969	5	7,471	observed
1970	6	7,070	observed
1971	no value	no value	not covered
1972	5	8,292	observed
1973	no value	no value	not covered
1974	no value	no value	not covered
1975	no value	no value	not covered
1976	no value	no value	not covered
1977	no value	no value	not covered
1978	7	7,649	observed
1979	no value	no value	not covered
1980	6	9,095	observed
1981	no value	no value	not covered
1982	no value	no value	not covered
1983	9	6,705	observed
1984	6	9,144	observed
1985	no value	no value	not covered
1986	no value	no value	not covered
1987	no value	no value	not covered
1988	no value	no value	not covered
1989	no value	no value	not covered
1990	no value	no value	not covered
1991	no value	no value	not covered
1992	no value	no value	not covered
1993	6	11,780	observed
1994	8	9,586	observed
1995	no value	no value	not covered
1996	7	10,567	observed
1997	no value	no value	not covered
1998	5	14,122	observed
1999	no value	no value	not covered
2000	5	15,031	observed
2001	7	12,056	observed
2002	no value	no value	not covered
2003	7	12,408	observed
2004	9	10,690	observed
2005	12	8,883	observed
2006	8	12,420	observed
2007	9	11,630	observed
2008	11	10,084	observed
2009	9	11,459	observed
2010	9	11,246	observed
2011	8	12,153	observed
2012	13	8,632	observed
2013	14	8,135	observed
2014	19	6,451	observed
2015	22	5,833	observed
2016	23	5,622	observed
2017	27	4,922	observed
2018	17	6,792	observed
2019	21	5,798	observed
2020	20	5,850	observed
2021	14	7,630	observed
2022	14	7,631	observed
2023	8	11,169	observed
2024	7	12,161	observed
2025	no value	no value	not covered

About this dataset and its counting rules

Statistics count the spelling “Tamsin” as recorded by the publisher. When a spelling has several independent origins, the counts are not split between them. Counts measure applications. Gaps are years without a published value, not zeros.

Rates per million are unavailable for this series because no compatible denominator has been imported.

Universe: US national Social Security card applications by name, sex and birth year; not a complete birth registry, especially before 1937.
Rounding: Integer application counts retained without rounding.
Suppression: Only names with at least 5 occurrences in a year and sex are included. Missing observations are not zeros.
Ranking: computed by NameStoria from published counts; ties share a rank, next rank skips. The mirror's derived rank column is not used.

Retrieved 2026-10-15 · CC0-1.0

Read our methodology

04 / Through time

History

Notable bearers

People recorded with this given name in Wikidata. Their names may use a different spelling, or include it as a middle or baptismal name.

Tamsin Greig
born 1966
British actress (born 1966)
Wikipedia Wikidata source
Tamsin Egerton
born 1988
British actress
Wikipedia Wikidata source
Tamsin Cook
born 1998
Australian swimmer
Wikipedia Wikidata source

A little story to keep

A name worth keeping.

Take the story of Tamsin with you. Create a personal name passport with its meaning, roots and connections.

06 / Behind the facts

Sources for this page

Review status: Source-reported — no editorial review recorded yet. Last data change 2026-10-15.

Name origins & languageDictionaries, name records and related forms9

Wikidata Q26710023CC0-1.0 · retrieved 2026-10-15
Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-15
Greek Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-15
Polish Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Russian Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Turkish Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Wiktionary: ThomasCC-BY-SA-4.0 · retrieved 2026-10-15
Wiktionary: TamCC-BY-SA-4.0 · retrieved 2026-10-15
Wiktionary: TamsynCC-BY-SA-4.0 · retrieved 2026-10-15

Statistics and surveysPublishers, dataset licences and retrieval dates6

SSA national baby names, 1880–2025 (CC0 redistribution)
US Social Security Administration; redistributed by nkrishnaswami · CC0-1.0 · retrieved 2026-10-15
South Australia — Popular Baby Names, per-year lists including names given once, 1944-2017
Attorney-General's Department, South Australia (via data.sa.gov.au) · CC-BY-4.0 · retrieved 2026-10-15
National Records of Scotland — Babies' First Names: all first forenames given to 3 or more babies, Scotland, 1974-2025
National Records of Scotland (NRS) · OGL-UK-3.0 · retrieved 2026-10-15
Ireland — babies' first names with three or more occurrences, 1964–2025
Central Statistics Office (CSO), Ireland · CC-BY-4.0 · retrieved 2026-10-15
Baby names in England and Wales: 2025 (boys and girls workbooks, Table 6: all published names)
Office for National Statistics (ONS) · OGL-UK-3.0 · retrieved 2026-10-14
NISRA — First Forenames Given to Babies Registered in Northern Ireland, 1997-2025 (full list)
Northern Ireland Statistics and Research Agency (NISRA) · OGL-UK-3.0 · retrieved 2026-10-15

Wiktionary text: CC BY-SA 4.0. Wikidata: CC0. Commons recordings retain their individual file licences. Complete attribution is available in each group above and alongside each chart.

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About Tamsin

Tamsin is a feminine given name documented in English and Danish. English Wiktionary records an etymology for it. It is a form of Thomas, for which English Wiktionary gives the meaning “twin”.

Meaning in the sources

Source-reported

Meaning: “twin”

A medieval contraction of Thomasina, a feminine form of Thomas, revived in the UK in the twentieth century.

Sources for this account (6)

Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-15
Greek Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-15
Polish Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Russian Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Turkish Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Wiktionary: ThomasCC-BY-SA-4.0 · retrieved 2026-10-15

Where Tamsin is used

Explore published naming statistics and documented language connections around the world.

The name atlas

Across borders

countries in our sources

Select a country to follow Tamsin’s connections around the world.

4 countries with published statistics. Language records show cultural connections; they do not measure how common a name is.

Selected country

United States

Statistics + language records

United States, 2024: 7 girls (rank 12161). Documented as a given name in English.

Explore United States

4 of 11 countries

Popularity over time

Follow the spelling through the years, one published dataset at a time.

United States

1880–2025 Spelling: Tamsin

Region and dataset

Recorded category girls

Latest · 2024: 7; applications; Rank #12,161
Peak year: 2017; 27 applications

Hover to explore a year. Use arrow keys when a chart point has focus.

Source: US Social Security Administration; redistributed by nkrishnaswami · SSA national baby names, 1880–2025 (CC0 redistribution)

Integer application counts retained without rounding.

Per million is unavailable: this source has no matching published total.

Show the data table

Tamsin in United States, girls: applications and rank by year
Year	Applications	Rank	Status
1880	no value	no value	not covered
1881	no value	no value	not covered
1882	no value	no value	not covered
1883	no value	no value	not covered
1884	no value	no value	not covered
1885	no value	no value	not covered
1886	no value	no value	not covered
1887	no value	no value	not covered
1888	no value	no value	not covered
1889	no value	no value	not covered
1890	no value	no value	not covered
1891	no value	no value	not covered
1892	no value	no value	not covered
1893	no value	no value	not covered
1894	no value	no value	not covered
1895	no value	no value	not covered
1896	no value	no value	not covered
1897	no value	no value	not covered
1898	no value	no value	not covered
1899	no value	no value	not covered
1900	no value	no value	not covered
1901	no value	no value	not covered
1902	no value	no value	not covered
1903	no value	no value	not covered
1904	no value	no value	not covered
1905	no value	no value	not covered
1906	no value	no value	not covered
1907	no value	no value	not covered
1908	no value	no value	not covered
1909	no value	no value	not covered
1910	no value	no value	not covered
1911	no value	no value	not covered
1912	no value	no value	not covered
1913	no value	no value	not covered
1914	no value	no value	not covered
1915	no value	no value	not covered
1916	no value	no value	not covered
1917	no value	no value	not covered
1918	no value	no value	not covered
1919	no value	no value	not covered
1920	no value	no value	not covered
1921	no value	no value	not covered
1922	no value	no value	not covered
1923	no value	no value	not covered
1924	no value	no value	not covered
1925	no value	no value	not covered
1926	no value	no value	not covered
1927	no value	no value	not covered
1928	no value	no value	not covered
1929	no value	no value	not covered
1930	no value	no value	not covered
1931	no value	no value	not covered
1932	no value	no value	not covered
1933	no value	no value	not covered
1934	no value	no value	not covered
1935	no value	no value	not covered
1936	no value	no value	not covered
1937	no value	no value	not covered
1938	no value	no value	not covered
1939	no value	no value	not covered
1940	no value	no value	not covered
1941	no value	no value	not covered
1942	no value	no value	not covered
1943	no value	no value	not covered
1944	no value	no value	not covered
1945	no value	no value	not covered
1946	no value	no value	not covered
1947	no value	no value	not covered
1948	no value	no value	not covered
1949	no value	no value	not covered
1950	no value	no value	not covered
1951	no value	no value	not covered
1952	no value	no value	not covered
1953	no value	no value	not covered
1954	no value	no value	not covered
1955	5	5,828	observed
1956	8	4,467	observed
1957	no value	no value	not covered
1958	no value	no value	not covered
1959	no value	no value	not covered
1960	no value	no value	not covered
1961	6	5,851	observed
1962	6	5,860	observed
1963	no value	no value	not covered
1964	no value	no value	not covered
1965	no value	no value	not covered
1966	no value	no value	not covered
1967	no value	no value	not covered
1968	5	7,016	observed
1969	5	7,471	observed
1970	6	7,070	observed
1971	no value	no value	not covered
1972	5	8,292	observed
1973	no value	no value	not covered
1974	no value	no value	not covered
1975	no value	no value	not covered
1976	no value	no value	not covered
1977	no value	no value	not covered
1978	7	7,649	observed
1979	no value	no value	not covered
1980	6	9,095	observed
1981	no value	no value	not covered
1982	no value	no value	not covered
1983	9	6,705	observed
1984	6	9,144	observed
1985	no value	no value	not covered
1986	no value	no value	not covered
1987	no value	no value	not covered
1988	no value	no value	not covered
1989	no value	no value	not covered
1990	no value	no value	not covered
1991	no value	no value	not covered
1992	no value	no value	not covered
1993	6	11,780	observed
1994	8	9,586	observed
1995	no value	no value	not covered
1996	7	10,567	observed
1997	no value	no value	not covered
1998	5	14,122	observed
1999	no value	no value	not covered
2000	5	15,031	observed
2001	7	12,056	observed
2002	no value	no value	not covered
2003	7	12,408	observed
2004	9	10,690	observed
2005	12	8,883	observed
2006	8	12,420	observed
2007	9	11,630	observed
2008	11	10,084	observed
2009	9	11,459	observed
2010	9	11,246	observed
2011	8	12,153	observed
2012	13	8,632	observed
2013	14	8,135	observed
2014	19	6,451	observed
2015	22	5,833	observed
2016	23	5,622	observed
2017	27	4,922	observed
2018	17	6,792	observed
2019	21	5,798	observed
2020	20	5,850	observed
2021	14	7,630	observed
2022	14	7,631	observed
2023	8	11,169	observed
2024	7	12,161	observed
2025	no value	no value	not covered

About this dataset and its counting rules

Rates per million are unavailable for this series because no compatible denominator has been imported.

Universe: US national Social Security card applications by name, sex and birth year; not a complete birth registry, especially before 1937.
Rounding: Integer application counts retained without rounding.
Suppression: Only names with at least 5 occurrences in a year and sex are included. Missing observations are not zeros.
Ranking: computed by NameStoria from published counts; ties share a rank, next rank skips. The mirror's derived rank column is not used.

Retrieved 2026-10-15 · CC0-1.0

Read our methodology

History

Notable bearers

People recorded with this given name in Wikidata. Their names may use a different spelling, or include it as a middle or baptismal name.

Tamsin Greig
born 1966
British actress (born 1966)
Wikipedia Wikidata source
Tamsin Egerton
born 1988
British actress
Wikipedia Wikidata source
Tamsin Cook
born 1998
Australian swimmer
Wikipedia Wikidata source

Sources for this page

Review status: Source-reported — no editorial review recorded yet. Last data change 2026-10-15.

Name origins & languageDictionaries, name records and related forms9

Wikidata Q26710023CC0-1.0 · retrieved 2026-10-15
Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-15
Greek Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-15
Polish Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Russian Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Turkish Wiktionary: TamsinCC-BY-SA-4.0 · retrieved 2026-10-14
Wiktionary: ThomasCC-BY-SA-4.0 · retrieved 2026-10-15
Wiktionary: TamCC-BY-SA-4.0 · retrieved 2026-10-15
Wiktionary: TamsynCC-BY-SA-4.0 · retrieved 2026-10-15

Statistics and surveysPublishers, dataset licences and retrieval dates6

SSA national baby names, 1880–2025 (CC0 redistribution)
US Social Security Administration; redistributed by nkrishnaswami · CC0-1.0 · retrieved 2026-10-15
South Australia — Popular Baby Names, per-year lists including names given once, 1944-2017
Attorney-General's Department, South Australia (via data.sa.gov.au) · CC-BY-4.0 · retrieved 2026-10-15
National Records of Scotland — Babies' First Names: all first forenames given to 3 or more babies, Scotland, 1974-2025
National Records of Scotland (NRS) · OGL-UK-3.0 · retrieved 2026-10-15
Ireland — babies' first names with three or more occurrences, 1964–2025
Central Statistics Office (CSO), Ireland · CC-BY-4.0 · retrieved 2026-10-15
Baby names in England and Wales: 2025 (boys and girls workbooks, Table 6: all published names)
Office for National Statistics (ONS) · OGL-UK-3.0 · retrieved 2026-10-14
NISRA — First Forenames Given to Babies Registered in Northern Ireland, 1997-2025 (full list)
Northern Ireland Statistics and Research Agency (NISRA) · OGL-UK-3.0 · retrieved 2026-10-15

Wiktionary text: CC BY-SA 4.0. Wikidata: CC0. Commons recordings retain their individual file licences. Complete attribution is available in each group above and alongside each chart.

A story to pass on.

About Tamsin

Meaning in the sources

Where Tamsin is used

Across borders

United States

Popularity over time

United States

History

Notable bearers

Tamsin Greig

Tamsin Egerton

Tamsin Cook

Related names

Different forms. Shared stories.

Meet the family

Related names in the catalogue

A name worth keeping.

Sources for this page

A story to pass on.

About Tamsin

Meaning in the sources

Where Tamsin is used

Across borders

United States

Popularity over time

United States

History

Notable bearers

Tamsin Greig

Tamsin Egerton

Tamsin Cook

Related names

Different forms. Shared stories.

Meet the family

Related names in the catalogue

A name worth keeping.

Sources for this page