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Thersa

Girls' name

Form of Tirzah

Thersa has been given to 1,071 babies in the U.S. since 1908. 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 1965, with 45 recorded.

Babies named Thersa, 2001

1 in 624,000

Thersa over time, 1880–2025

Girls
020406018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Thersa: meaning, origin, and history

Form of Tirzah

Deeper origin not confirmed in the cited records

What Thersa means

Thersa is a form of Tirzah.

Documented naming usage and pronunciation

Thersa is used in Biblical Latin and Biblical Greek.

Meaning behind the documented name family

The name developed through Thersa → Tirzah. The family’s meaning is “pleasant”, recorded in English.

Related names and everyday forms

Related names include Tirzah.

American usage and historical context

In the United States, 1,071 girls were recorded with the name Thersa between 1908 and 2001. Its highest annual count was 45 in 1965; its best national rank was #1,688 in 1965.

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 Thersa?

Thersa had fewer than 5 recorded uses in 2025, so these figures use 2001, the last year it was published.

Among all babies, 2001
1 in 624,000
6 of 3,742,181 births
Among girls only
1 in 300,000
<0.01% of girls
Rank, 2001
Unranked
Fewer than 5 uses
Coin-flip room size
432,315 kids
Even odds of a second one

Where Thersa 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 2001 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 432,315 children born in 2001 and it's an even bet that one of them is another Thersa. In a class of 30 the chance is Under 1%.

When Thersas were born

Half of everyone ever recorded as Thersa was born before 1962 — so the typical Thersa is around 63 today.

Median birth year
1962
About 63 years old
Biggest decade
1960s
30.4% of all use
Born in the last 25 years
12.0%
Spread across generations
Recorded since 1950
813
People you could plausibly meet
Choose a decade

1960s — 30.4% of all recorded uses (326).

Is Thersa 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 1965 (45)
Years since peak
60
Years
Year-to-year steadiness
Volatile
31.4% average annual change
Best rank ever
#1,688
1965

Spellings of Thersa

Thersa is not the most common spelling — Teresa is, with 33.3% against Thersa's 0.09%.

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 Thersa is used

Across 1910–2025, Thersa was most concentrated in California — about 1 in — girls, against 1 in 1,238,494 across all states with data. It was least common in Texas (1 in —).

00 per 100,000

Most concentrated

  1. 1California1 in —
  2. 2Louisiana1 in —
  3. 3Michigan1 in —
  4. 4South Carolina1 in —
  5. 5Texas1 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. Thersa has too little recent state data to map, so this covers all years from 1910.

Thersa around the world

Where Thersa 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.

  • South Australia
    1959–1975
    #675
    in 1975

Popularity data from Consumer and Business Services (South Australia). CBS SA data under CC BY 4.0.

Thersa 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
#1,688
1965
Peak year
1965
45 that year
First recorded
1908
Last recorded
2001
All-time count
1,071
Count in 2025
Under 5

Names similar to Thersa

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

TheiaTheoraTheodoreTheonaTheadoraTheoryTheolaTheldaThenaThearsaTheraTheoneTheklaTheclaTheoTheodosiaTheoriThetaTherisaThetisTheresiaTheressaThermaVersa

Sibling names for Thersa

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

Explore around Thersa

Top names of 1965, Thersa's peak yearThe 1960s in fullOther names that peaked in 1965Girls' names starting with T