Name Awesome

Betti

Girls' name

My God is an oath, through Elisabetta

Betti has been given to 849 babies in the U.S. since 1916. 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 1946, with 37 recorded.

Babies named Betti, 1995

1 in 523,000

Betti over time, 1880–2025

Girls
01020304018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Betti: meaning, origin, and history

My God is an oath, through Elisabetta

Deeper origin not confirmed in the cited records

What Betti means

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

Origin, language, and formation

Betti is used in Estonian and Italian.

Related names and everyday forms

Related names include Eliisabet and Elisabetta.

American usage and historical context

In the United States, 849 girls were recorded with the name Betti between 1916 and 1995. Its highest annual count was 37 in 1946; its best national rank was #1,439 in 1946.

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 Betti?

Betti had fewer than 5 recorded uses in 2025, so these figures use 1995, the last year it was published.

Among all babies, 1995
1 in 523,000
7 of 3,660,254 births
Among girls only
1 in 251,000
<0.01% of girls
Rank, 1995
Unranked
Fewer than 5 uses
Coin-flip room size
362,443 kids
Even odds of a second one

Where Betti 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 1995 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 362,443 children born in 1995 and it's an even bet that one of them is another Betti. In a class of 30 the chance is Under 1%.

When Bettis were born

Half of everyone ever recorded as Betti was born before 1948 — so the typical Betti is around 77 today.

Median birth year
1948
About 77 years old
Biggest decade
1940s
29.0% of all use
Born in the last 25 years
6.5%
Mostly a past generation
Recorded since 1950
395
People you could plausibly meet
Choose a decade

1940s — 29.0% of all recorded uses (246).

Is Betti 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 1946 (37)
Years since peak
79
Years
Year-to-year steadiness
Volatile
27.4% average annual change
Best rank ever
#1,439
1946

Spellings of Betti

Betti is not the most common spelling — Betty is, with 65.5% against Betti's 0.06%.

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 Betti is used

Across 1910–2025, Betti was most concentrated in California — about 1 in — girls, against 1 in 1,035,406 across all states with data. It was least common in Washington (1 in —).

00 per 100,000

Most concentrated

  1. 1California1 in —
  2. 2New York1 in —
  3. 3Washington1 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. Betti has too little recent state data to map, so this covers all years from 1910.

Betti around the world

Where Betti 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.

  • France
    2000–2000
    #4,220
    in 2000
  • South Australia
    1992–1992
    #704
    in 1992

Popularity data from Institut national de la statistique et des études économiques and Consumer and Business Services (South Australia). INSEE data under Licence Ouverte / Etalab 2.0. CBS SA data under CC BY 4.0.

Betti 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
#1,439
1946
Peak year
1946
37 that year
First recorded
1916
Last recorded
1995
All-time count
849
Count in 2025
Under 5

Names similar to Betti

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

BetzyBetinaMattiLettiBetsabeScottiBetsaidaBethaBetaniaBethelBetzaidaBetzabeBettyjoBethzyBetsiBethaniBetseyBetulBetsieBettinaHattiBethlehemBettaBette

Sibling names for Betti

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 Betti

Top names of 1946, Betti's peak yearThe 1940s in fullOther names that peaked in 1946Girls' names starting with B