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Kostas

#10,243 in 2025Boys' name

Short form of Konstantinos

Kostas has been given to 372 babies in the U.S. since 1961. In 2025 it ranked #10,243 of 13,926 boys’ names in use. Its peak year was 1974, with 17 recorded.

Babies named Kostas, 2025

1 in 474,000

Kostas over time, 1880–2025

Boys
0510152018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Kostas: meaning, origin, and history

Short form of Konstantinos

Deeper origin not confirmed in the cited records

What Kostas means

Kostas is a short form of Konstantinos.

Dictionary etymologyReferences, data & attribution

Transliteration of Greek Κώστας (Kóstas), a male given name used in (modern) Greece.

Excerpt from Wiktionary: Kostas (English) · CC BY-SA 4.0

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

Kostas is used in English and Lithuanian.

Kostas comes through Greek Κώστας.

Related names and everyday forms

Related names include Konstantinos and Κώστας.

Pronunciation and spelling

In Lithuanian, Kostas is pronounced [ˈkɔstɐs].

American usage and historical context

In the United States, 372 boys were recorded with the name Kostas between 1961 and 2025. Its highest annual count was 17 in 1974; its best national rank was #2,409 in 1974.

Over 5 years its rank fell, from #9,187 in 2020 to #10,243 in 2025. Over 10 years its rank rose, from #13,174 in 2015 to #10,243 in 2025.

How common is Kostas?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 474,000
7 of 3,315,165 births
Among boys only
1 in 244,000
<0.01% of boys
Rank, 2025
#10,243
of 13,926 boys’ names in use
Coin-flip room size
328,272 kids
Even odds of a second one

Where Kostas 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 2025 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 328,272 children born in 2025 and it's an even bet that one of them is another Kostas. In a class of 30 the chance is Under 1%.

When Kostass were born

Half of everyone ever recorded as Kostas was born before 1984 — so the typical Kostas is around 41 today.

Median birth year
1984
About 41 years old
Biggest decade
1970s
28.8% of all use
Born in the last 25 years
32.8%
Spread across generations
Recorded since 1950
372
People you could plausibly meet
Choose a decade

1970s — 28.8% of all recorded uses (107).

Is Kostas 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
−1,056
Places dropped
Rank vs 10 years ago
+2,931
Places climbed
Births vs 10 years ago
1.40×
More babies than then
Share of its own peak
41.2%
Peak was 1974 (17)
Years since peak
51
Years
Year-to-year steadiness
Shifting
24.5% average annual change
Best rank ever
#2,409
1974

Spellings of Kostas

Kostas is not the most common spelling — Josias is, with 71.3% against Kostas's 7.5%.

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 Kostas is used

Across 1910–2025, Kostas was most concentrated in New York — about 1 in — boys, against 1 in 429,801 across all states with data.

00 per 100,000

Most concentrated

  1. 1New York1 in —

Shading is the share of that state's recorded boys 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. Kostas has too little recent state data to map, so this covers all years from 1910.

Kostas around the world

Where Kostas 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
    2009–2020
    #4,608
    in 2020
  • France
    2019–2019
    #5,834
    in 2019
  • South Australia
    1956–2000
    #556
    in 2000

Popularity data from Office for National Statistics, Institut national de la statistique et des études économiques and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. INSEE data under Licence Ouverte / Etalab 2.0. CBS SA data under CC BY 4.0.

Kostas by the numbers

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

As a boy's name

Rank in 2025
#10,243
Trend vs 5 yrs ago
Down 1,056
Best rank ever
#2,409
1974
Peak year
1974
17 that year
First recorded
1961
Last recorded
2025
All-time count
372
Count in 2025
7

Names similar to Kostas

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

KostonKostaCostasKosmoKosukeKoseiKosmasMatasNikitasMantasKostantinosKostenKosmosKosisochukwuNatasVytautasGustasAugustasKosiVytasVitasQuantasStasJustas

Sibling names for Kostas

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 Kostas

Top names of 1974, Kostas's peak yearThe 1970s in fullOther names that peaked in 1974Boys' names starting with KGreek Boy NamesLithuanian Boy NamesLithuanian Names