Betsi

Girls' name

My God is an oath, through Elizabeth

Betsi has been given to 162 babies in the U.S. since 1944. 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 2006, with 15 recorded.

Babies named Betsi, 2007

1 in 400,000

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Betsi: meaning, origin, and history

My God is an oath, through Elizabeth

Deeper origin not confirmed in the cited records

What Betsi means

Betsi belongs to the name family reached through Betsi → Elizabeth. Its meaning is “my God is an oath”.

Origin, language, and formation

Betsi is used in English.

Related names and everyday forms

Related names include Elizabeth and Betsy.

American usage and historical context

In the United States, 162 girls were recorded with the name Betsi between 1944 and 2007. Its highest annual count was 15 in 2006; its best national rank was #4,103 in 1944.

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 Betsi?

Betsi had fewer than 5 recorded uses in 2025, so these figures use 2007, the last year it was published.

Among all babies, 2007: 1 in 400,000; 10 of 3,997,748 births
Among girls only: 1 in 192,000; <0.01% of girls
Rank, 2007: Unranked; Fewer than 5 uses
Coin-flip room size: 277,104 kids; Even odds of a second one

Where Betsi 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 2007 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 277,104 children born in 2007 and it's an even bet that one of them is another Betsi. In a class of 30 the chance is Under 1%.

When Betsis were born

Half of everyone ever recorded as Betsi was born before 1970 — so the typical Betsi is around 55 today.

Median birth year: 1970; About 55 years old
Biggest decade: 1960s; 24.7% of all use
Born in the last 25 years: 30.2%; Spread across generations
Recorded since 1950: 143; People you could plausibly meet

Choose a decade

1960s — 24.7% of all recorded uses (40).

Is Betsi 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 2006 (15)
Years since peak: 19; Years
Year-to-year steadiness: Volatile; 29.7% average annual change
Best rank ever: #4,103; 1944

Spellings of Betsi

Betsi is not the most common spelling — Betty is, with 67.2% against Betsi's 0.01%.

Betty67.2%1,001,238
Bessie11.4%170,140
Beth10.7%159,430
Betsy3.3%48,947
Bettie2.6%38,395
Bette2.3%34,897
Kelsi0.68%10,151
Bess0.48%7,171

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.

Betsi around the world

Where Betsi 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
2004–2025
#1,407
in 2025

Popularity data from Office for National Statistics. ONS data under Open Government Licence v3.0.

Betsi 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: #4,103; 1944
Peak year: 2006; 15 that year
First recorded: 1944
Last recorded: 2007
All-time count: 162
Count in 2025: Under 5

Names similar to Betsi

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

Betul Betzy Betzabe Betha Betta Betsie Bettey Betania Betel Betina Bethan Betzi Bethzy Bethe Betselot Betti Bethene Bethyl Betheny Betrice Bety Betsabe Patsi Bethanee

Sibling names for Betsi

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

Taniya Melia Jazmyne Jayna Nyasia Tayla Lanie Estefany

For a brother

Paulo Yair Lavon Tye Deshaun Oswaldo Nathen Mauro

Explore around Betsi

Top names of 2006, Betsi's peak year The 2000s in full Other names that peaked in 1944 Girls' names starting with B