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Home › Baby Names Directory › Thomasina

Thomasina

♀ Girl

Pronounced tom-uh-SEE-nuh /tɑm.əˈsiː.nə/High

Meaning: Thomasina is a Latinate feminine of Thomas, from the Aramaic te'oma, 'twin' (the name of the apostle). The -ina ending, common in medieval and early-modern England, makes it 'the female Thomas.'Medium

In 30 seconds: Thomasina is the graceful feminine of Thomas, 'twin' (said 'tom-uh-SEE-nuh') — an old and charming classic.
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Origin MediumAramaic, Latin
MeaningThomasina is a Latinate feminine of Thomas, from the Aramaic te'oma, 'twin' (the name of the apostle). The -ina ending, common in medieval and early-modern England, makes it 'the female Thomas.'
U.S. rank (2019)#15401 ↗ Rising
2019 U.S. births6 girls (0.00% of U.S. girls)
Peak year1966
Total births (all-time)≈ 3,765

Popularity in the U.S. · SSA data

peak 196619042019

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Thomasina is a feminine form of Thomas, from Aramaic te'oma, 'twin,' the name borne by the doubting apostle. The Latin -ina suffix produced this and its short form Tamsin in medieval and Tudor England. In the U.S. it stayed rare and old-fashioned, appearing from the early 1900s and reaching a modest high in 1966.

A girl named Thomasina at its mid-sixties peak is now approaching sixty. The name reads as an antique curiosity with real pedigree; its lilting four-beat tom-uh-SEE-nuh sound and the trim nickname Tamsin give it revival potential among parents hunting overlooked classics, and it pairs well with other -ina names like Wilhelmina and Geraldine.

Did you know? Thomasina is far older than it looks: English parish records show girls named Thomasina and Tamsin (its contracted form) back in the 1500s.
Overall data confidence 78%
References — Thomasina — Feminine of Thomas (Aramaic te'oma, 'twin'); short form Tamsin

Variations

ThomasinTomasinaThomasine

Nicknames

TamsinTommieSina

Famous Bearers

  • Famous bearers coming soon.

If you like Thomasina…

Tamsin— the traditional short form of Thomasina
Wilhelmina— a like feminine -ina form of a male name
Geraldine— a same-style feminization of a classic boy's name
Dariana— shares Thomasina's Latin roots
Vivianna— another Latin name

Explore names like Thomasina

By themevintageclassicfeminine

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Frequently Asked

What does the name Thomasina mean?

Thomasina is a feminine form of Thomas, from Aramaic te'oma, meaning 'twin.'

How do you pronounce Thomasina?

It's said tom-uh-SEE-nuh /tɑm.əˈsiː.nə/ — four syllables, stress on the third.

Is Thomasina a boy or girl name?

Thomasina is used as a girl's name.

How popular is Thomasina?

Thomasina has long been a rare, old-fashioned feminine name in the U.S., with a small crest in the mid nineteen-sixties.

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