Jaso

Boys' name

English equivalent of Blaise

Jaso has been given to 12 babies in the U.S. since 1972. 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 1972, with 6 recorded.

Babies named Jaso, 1976

1 in 506,000

Jaso over time, 1880–2025

Boys

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Jaso: meaning, origin, and history

English equivalent of Blaise

Deeper origin not confirmed in the cited records

What Jaso means

Jaso is a English equivalent of Blaise.

Origin, language, and formation

Jaso is used in Neapolitan.

Jaso comes through Latin Blasius.

Related names and everyday forms

Related names include Blaise and Biagio.

Pronunciation and spelling

In Neapolitan, Jaso is pronounced [ˈjaːsə].

American usage and historical context

In the United States, 12 boys were recorded with the name Jaso between 1972 and 1976. Its highest annual count was 6 in 1972; its best national rank was #4,683 in 1972.

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 Jaso?

Jaso had fewer than 5 recorded uses in 2025, so these figures use 1976, the last year it was published.

Among all babies, 1976: 1 in 506,000; 6 of 3,034,007 births
Among boys only: 1 in 261,000; <0.01% of boys
Rank, 1976: Unranked; Fewer than 5 uses
Coin-flip room size: 350,503 kids; Even odds of a second one

Where Jaso sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 1976 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 350,503 children born in 1976 and it's an even bet that one of them is another Jaso. In a class of 30 the chance is Under 1%.

When Jasos were born

Half of everyone ever recorded as Jaso was born before 1972 — so the typical Jaso is around 53 today.

Median birth year: 1972; About 53 years old
Biggest decade: 1970s; 100.0% of all use
Born in the last 25 years: 100.0%; A modern name
Recorded since 1950: 12; People you could plausibly meet

Choose a decade

1970s — 100.0% of all recorded uses (12).

Is Jaso 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 1972 (6)
Years since peak: 53; Years
Year-to-year steadiness: Not enough data; Too few years
Best rank ever: #4,683; 1972

Spellings of Jaso

Jaso is not the most common spelling — Jason is, with 21.9% against Jaso's <0.01%.

Jason21.9%1,052,030
Jacob20.6%988,227
Jack15.8%756,943
Jose12.3%592,512
Mason7.1%342,583
Jay4.1%195,548
Jake2.7%129,322
Jaxon2.4%113,651

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.

Jaso by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025: Unranked
Trend vs 5 yrs ago: —
Best rank ever: #4,683; 1972
Peak year: 1972; 6 that year
First recorded: 1972
Last recorded: 1976
All-time count: 12
Count in 2025: Under 5

Names similar to Jaso

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

Jasvik Jaswik Jasi Jasaii Jasoor Jasek Jassan Jaseir Jasur Jasom Jasyi Jasail Jasem Jasmir Jasahn Jaseem Jash Jasia Jasmen Jasey Jasye Jasik Jaseh Jasere

Sibling names for Jaso

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

Nicola Latonia Nicki Sharla Niki Trena Charisse Melonie

For a brother

Shon Shelton Darrick Douglass Alfonzo Demond Scottie Erich

Explore around Jaso

Top names of 1972, Jaso's peak year The 1970s in full Other names that peaked in 1972 Boys' names starting with J