Given name

Thomasine

“twin”·“a twin”

In English use, Thomasine is a feminine form of Thomas. The original Aramaic byname means “twin.” Thomasine is a variant of Thomasina. In Hebrew use, Thomasina carries the interpretation “a twin.”

Meaning & origin

What it means

In English use, Thomasine is a feminine form of Thomas. The original Aramaic byname means “twin.” Thomasine is a variant of Thomasina. In Hebrew use, Thomasina carries the interpretation “a twin.”

Explained through its name family

Where it comes from

In English use, Thomasine is a feminine form of Thomas. Thomas developed from an Aramaic byname and reached wider use through its Greek biblical form.

Explained through its name family

How it developed

In English usage, Thomasine is a feminine form of Thomas. In English use, Thomasine is a feminine form of Thomas. The shared background comes through Thomas: The apostle is called Thomas and also Didymus in the New Testament. Didymus reflects the Greek word for “twin,” matching the meaning of the Aramaic byname behind Thomas.

Combines direct and name-family evidence

The story

Published U.S. birth records include this spelling as early as 1909. This is the earliest published observation available here, rather than a date for the name’s origin. In English use, Thomasine is a feminine form of Thomas. The history of Thomas gives this family its wider story. Thomas was the name of one of Jesus’s twelve apostles, remembered in Christian tradition for his doubts and later reassurance. That story helped establish the name across Christian naming traditions.

Combines direct and name-family evidence

Thomasine through the years

Babies since 1880
2,234
0 boys · 2,234 girls
Most popular year
1950
67 babies
2025
0
Outside the ranked list
2021–25 vs 2016–20
—
Too few births to compare
0204060192019401960198020002025Highest share 19410.0
Thomasine in U.S. Social Security birth records, 1909–2025, per million girls born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

By the numbers

The most recent published U.S. birth count for girls is 6 in 1994. Later missing counts do not mean the name went unused. Its largest published annual count for girls was 67 in 1950. Published U.S. population figures for this spelling include 1,238 as a first name in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Thomasine’s family of names

In English usage, Thomasine is a feminine form of Thomas. Thomasine has a related form in Thomasina. In English usage, Thomasine has a related form in Thomasin.

Walk Thomasine’s family in the name graph

ThomasineTomasineThomasyneThomasinaThomasinThomassineThomasTamsinTazminTasminThomazineThomasse

Inner ring: spellings · middle: nicknames and forms · outer: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Nicknames & forms 3

Diminutives, pet forms, short forms and variants used alongside the name.

Spellings & scripts 2

The same name written differently, including transliterations into other scripts.

Across languages 6

Equivalents and cognates in other languages, plus older forms it grew from.

People named Thomasine

Listed by how widely each person is written about, which says nothing about the name itself.

Similar names

If you love Thomasine, these share its style, era, origin or sound, from outside its own family.

Biblical

Gayle

“father of exaltation” · “the source of a father”

0Not recently recordedSteady

>99% girls

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Debbera

“bee”

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Mata

“lady” · “gift of God”

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>99% girls

Biblical

Deberah

“bee”

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>99% girls

Biblical Hebrew · Biblical

Debbora

“bee”

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>99% girls

Biblical

Debor

“bee”

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>99% girls

Biblical

Ruthanne

“compassion” · “a beloved companion”

21RareSteady

>99% girls

Biblical

Debbra

“bee”

0Not recently recorded

>99% girls

Sibling ideas

Names that share Thomasine’s feel without repeating its first letter or rhyming with it.

A brother for Thomasine

A sister for Thomasine