Name Awesome

Kasia

#5,480 in 2025Girls' name

Diminutive of Katarzyna

Kasia has been given to 1,725 babies in the U.S. since 1958. In 2025 it ranked #5,480 of 17,293 girls’ names in use. Its peak year was 2002, with 71 recorded.

Babies named Kasia, 2025

1 in 144,000

Kasia over time, 1880–2025

Girls
02040608018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Kasia: meaning, origin, and history

Diminutive of Katarzyna

Deeper origin not confirmed in the cited records

What Kasia means

Kasia is a diminutive of Katarzyna.

Origin, language, and formation

Kasia is used in Polish.

Related names and everyday forms

Related names include Katarzyna.

Pronunciation and spelling

In Polish, Kasia is pronounced /ˈka.ɕa/.

American usage and historical context

In the United States, 1,725 girls were recorded with the name Kasia between 1958 and 2025. Its highest annual count was 71 in 2002; its best national rank was #2,293 in 2002.

Over 5 years its rank fell, from #5,235 in 2020 to #5,480 in 2025. Over 10 years its rank fell, from #5,044 in 2015 to #5,480 in 2025.

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 Kasia?

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

Among all babies, 2025
1 in 144,000
23 of 3,315,165 births
Among girls only
1 in 69,900
<0.01% of girls
Rank, 2025
#5,480
of 17,293 girls’ names in use
Coin-flip room size
99,910 kids
Even odds of a second one

Where Kasia 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 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 99,910 children born in 2025 and it's an even bet that one of them is another Kasia. In a class of 30 the chance is Under 1%.

When Kasias were born

Half of everyone ever recorded as Kasia was born before 2001 — so the typical Kasia is around 24 today.

Median birth year
2001
About 24 years old
Biggest decade
2000s
31.9% of all use
Born in the last 25 years
52.6%
A modern name
Recorded since 1950
1,725
People you could plausibly meet
Choose a decade

2000s — 31.9% of all recorded uses (551).

Is Kasia 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
+224
Places climbed
Rank vs 5 years ago
−245
Places dropped
Rank vs 10 years ago
−436
Places dropped
Births vs 10 years ago
0.85×
Fewer babies than then
Share of its own peak
32.4%
Peak was 2002 (71)
Years since peak
23
Years
Year-to-year steadiness
Volatile
32.9% average annual change
Best rank ever
#2,293
2002

Spellings of Kasia

Kasia is not the most common spelling — Maria is, with 22.5% against Kasia's 0.07%.

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 Kasia is used

Across 1910–2025, Kasia was most concentrated in California — about 1 in 100,000 girls, against 1 in 414,135 across all states with data. It was least common in Wisconsin (1 in —).

01 per 100,000

Most concentrated

  1. 1California1 in 100,000
  2. 2Utah1 in 100,000
  3. 3Florida1 in —
  4. 4Georgia1 in —
  5. 5Illinois1 in —
  6. 6Indiana1 in —
  7. 7North Carolina1 in —
  8. 8New York1 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. Kasia has too little recent state data to map, so this covers all years from 1910.

Kasia around the world

Where Kasia 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
    1996–2023
    #4,710
    in 2023
  • Scotland
    2000–2000
    #525
    in 2000
  • France
    1996–2017
    #7,402
    in 2017
  • Canada
    1991–2024
    #3,027
    in 2024
  • South Australia
    1953–2013
    #536
    in 2013

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

Kasia by the numbers

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

As a girl's name

Rank in 2025
#5,480
Trend vs 5 yrs ago
Down 245
Best rank ever
#2,293
2002
Peak year
2002
71 that year
First recorded
1958
Last recorded
2025
All-time count
1,725
Count in 2025
23

Names similar to Kasia

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

KassiaKassiKasieKashaCesiaAysiaKasseyKassidiKashviKassyKasynMyasiaKeasiaAlasiaTasiaElisiaKassieKesiaCassiaTyasiaStasiaKasiJasiaDasia

Sibling names for Kasia

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 Kasia

Top names of 2002, Kasia's peak yearThe 2000s in fullOther names that peaked in 2002Girls' names starting with KPolish Girl NamesPolish Names