Thomasina

Girls' name

Twin, through Thomas

Thomasina has been given to 3,765 babies in the U.S. since 1904. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1966, with 85 recorded.

Babies named Thomasina, 2019

1 in 579,000

Thomasina over time, 1880–2025

Girls

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Thomasina: meaning, origin, and history

Twin, through Thomas

Aramaic

What Thomasina means

Thomasina belongs to the name family reached through Thomasina → Thomas. Its meaning is “twin”.

Origin, language, and formation

Thomasina is used in English. Its origins include Aramaic.

Related names and everyday forms

Related names include Thomas.

Pronunciation and spelling

In English, Thomasina is pronounced /tɑməˈsinə/.

American usage and historical context

In the United States, 3,765 girls were recorded with the name Thomasina between 1904 and 2019. Its highest annual count was 85 in 1966; its best national rank was #977 in 1932.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Thomasina?

Thomasina had fewer than 5 recorded uses in 2025, so these figures use 2019, the last year it was published.

Among all babies, 2019: 1 in 579,000; 6 of 3,472,229 births
Among girls only: 1 in 280,000; <0.01% of girls
Rank, 2019: Unranked; Fewer than 5 uses
Coin-flip room size: 401,129 kids; Even odds of a second one

Where Thomasina sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2019 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%

Class of 30Under 1%

Grade of 100Under 1%

School of 500Under 1%

Put another way: gather 401,129 children born in 2019 and it's an even bet that one of them is another Thomasina. In a class of 30 the chance is Under 1%.

When Thomasinas were born

Half of everyone ever recorded as Thomasina was born before 1958 — so the typical Thomasina is around 67 today.

Median birth year: 1958; About 67 years old
Biggest decade: 1960s; 15.7% of all use
Born in the last 25 years: 4.6%; Mostly a past generation
Recorded since 1950: 2,404; People you could plausibly meet

Choose a decade

1960s — 15.7% of all recorded uses (592).

Is Thomasina rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago: —; Not ranked then
Rank vs 5 years ago: New entry; Not ranked then
Rank vs 10 years ago: —; Not ranked then
Births vs 10 years ago: —; Not published both years
Share of its own peak: 0%; Peak was 1966 (85)
Years since peak: 59; Years
Year-to-year steadiness: Volatile; 42.8% average annual change
Best rank ever: #977; 1932

Spellings of Thomasina

Thomasina is the most-used spelling, taking 48.9% of the 7,702 babies given a near-identical spelling.

Thomasina48.9%3,765
Thomasine29.0%2,234
Tomasita12.1%935
Thomasena10.0%768

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Thomasina is used

Across 1910–2025, Thomasina was most concentrated in South Carolina — about 1 in 4,167 girls, against 1 in 48,239 across all states with data. It was least common in Virginia (1 in —).

024 per 100,000

State popularity map

Most concentrated

1South Carolina1 in 4,167
2New York1 in 20,000
3North Carolina1 in 50,000
4Florida1 in 100,000
5Georgia1 in 100,000
6New Jersey1 in 100,000
7Pennsylvania1 in 100,000
8Alabama1 in —

Shading is the share of that state's recorded girls given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Thomasina has too little recent state data to map, so this covers all years from 1910.

Thomasina around the world

Where Thomasina ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

England & Wales
1997–2025
#4,201
in 2025
Scotland
1975–1980
#539
in 1980
Northern Ireland
2018–2018
#434
in 2018
Ireland
1964–1990
#409
in 1990
Canada
1991–1991
#2,397
in 1991
South Australia
1946–1992
#704
in 1992

Popularity data from Office for National Statistics, National Records of Scotland, Northern Ireland Statistics and Research Agency, Central Statistics Office, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS, NISRA data under Open Government Licence v3.0. CSO, CBS SA data under CC BY 4.0. StatCan data under Statistics Canada Open Licence.

Thomasina in other languages

Cross-language forms and variants of Thomasina. Linked forms have their own page here.

Tamsin Tasmin Tazmin ThomasineThomasse

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Thomasina by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025: Unranked
Trend vs 5 yrs ago: —
Best rank ever: #977; 1932
Peak year: 1966; 85 that year
First recorded: 1904
Last recorded: 2019
All-time count: 3,765
Count in 2025: Under 5

Names similar to Thomasina

Matched on shared beginnings and endings, similar length, and comparable popularity.

Names with a curve like Thomasina

Not spelling — timing. These names rose, peaked and faded in the same years as Thomasina, so they read as being from the same moment even when they look nothing alike.

Janetta Johnetta Jeanetta Felice Kenneth Johnny Vanita Carmelita Ronald Jennette Douglas Jay

Sibling names for Thomasina

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

For a sister

Rona Dawna Rosita Collette Barbra Sarita Kandy Cami

For a brother

Deron Darron Daron Kip Kraig Daren Kelley Richie

Explore around Thomasina

Top names of 1966, Thomasina's peak year The 1960s in full Other names that peaked in 1932 Girls' names starting with T