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Home › Baby Names Directory › Theresia

Theresia

♀ Girl

How to Pronounce Theresia

Pronounced teh-REE-see-uh /tɛˈriː.si.ə/Medium

Meaning: Theresia is the Latin and Central-European form of Theresa (German Therese, Hungarian Terézia). The origin of Theresa is debated: it is most often connected to a Greek verb meaning 'to harvest' or to the Aegean island of Therasia. Theresia carries that same inherited meaning in its fuller, formal spelling.Medium

In 30 seconds: Theresia is the Latinate form of Theresa (said 'teh-REE-see-uh'), a name tied to Greek roots for 'harvest' or the island Therasia. It reads as a European, old-world spelling.
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Origin MediumGreek, Latin
MeaningTheresia is the Latin and Central-European form of Theresa (German Therese, Hungarian Terézia). The origin of Theresa is debated: it is most often connected to a Greek verb meaning 'to harvest' or to the Aegean island of Therasia. Theresia carries that same inherited meaning in its fuller, formal spelling.
U.S. rank (2007)#15351 ↘ Falling
2007 U.S. births7 girls (0.00% of U.S. girls)
Peak year1959
Total births (all-time)≈ 2,016

Popularity in the U.S. · SSA data

peak 195918812007

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

Theresia is the Latin and German-Hungarian form of Theresa, whose root is uncertain but usually tied either to a Greek word for 'to harvest' or to the island of Therasia. It reached American records largely through Central-European immigrant families, who kept the fuller old-country spelling rather than the English Theresa or Teresa.

In the United States it crested near sixty girls a year around 1959, its use anchored in immigrant communities, before thinning as later generations shifted to the plainer Theresa. A woman given the name at its peak would be in her sixties now, and it reads as a heritage spelling with old-world dignity.

Did you know? Theresia was the formal court spelling behind Empress Maria Theresia of Austria — one reason the -ia ending has always carried a stately, Central-European flavor.
Overall data confidence 62%
References — Theresia — Latinate/German-Hungarian form of Theresa; origin debated

Variations

TheresaTeresaTherese

Nicknames

TessResiTessa

Famous Bearers

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If you like Theresia…

Theresa— the standard English form of the same name and meaning
Teresa— a common variant spelling of the identical source
Therese— the French form in the same family
Tessa— a short form long tied to the Theresa group

Explore names like Theresia

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Frequently Asked

What does the name Theresia mean?

Theresia is a form of Theresa, most often linked to a Greek word for 'to harvest' or to the island of Therasia.

How do you pronounce Theresia?

It's said teh-REE-see-uh /tɛˈriː.si.ə/ — four syllables, stress on the second.

Is Theresia a boy or girl name?

Theresia is used as a girl's name.

How popular is Theresia?

Theresia was an uncommon heritage spelling that crested in the mid-twentieth century and has been rare since, as families favored the plainer Theresa.

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