Kaja
given name · Polish · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
Kaja is a given name, with more bearers in Poland than in any other country. It appears chiefly in Polish and Norwegian Bokmål, written in the Latin script. Recorded meaning: a diminutive of the female given name Katarina, also explained as the feminine form of Kai.
- PLPoland1 in 1.3K◐
- MKNorth Macedonia1 in 2.1K
- HRCroatia1 in 3.6K
carrying the name, one hue, darker where it is more common. Hover a country for its figure.
- ≈42K ●
- 2 ●
- Sources
- 107 ●
- 1 in 487 ◐
across 14 countries
recorded for this name
5.2K records
Official registry-verified
Slovenia
Spellings & scripts●
Locally spelled Каја in MK North Macedonia.
Spellings marked ● are how people bearing the name write it in our records; ○ marks a model's transliteration. Click a spelling to open its page.
Meaning & origin●
a diminutive of the female given name Katarina, also explained as the feminine form of Kai
Sources 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Attested across 19 languages in the etymology graph.
Where in the world●
Sorted by bearers counted by national registers, records where none counts.
| Country | Most common spelling | Sources | |||||
|---|---|---|---|---|---|---|---|
| PL Poland | #246 | 28,471△ | 1.8K rec. | 1 in 1.3K | 28K | Kaja | 107 |
| NO Norway | — | 4,647△ | 21 rec. | 1 in 1.2K | 16K | Kaja | 9 |
| SI Slovenia | #891 | 4,315△ | 248 rec. | 1 in 487 | 4.4K | Kaja | 50 |
| DK Denmark | — | 1,462 | — | 1 in 4K | 1.5K | — | — |
| HR Croatia | #503 | 1,183 | 1.9K rec. | 1 in 3.6K | 1.3K | Kaja | 32 |
| MK North Macedonia | #357 | 1,025 | 0 rec. | 1 in 2.1K | 1K | Каја | 3 |
| US United States | — | 710 | 403 rec. | 1 in 469K | 710 | Kaja | 62 |
| SE Sweden | — | 238△ | 30 rec. | 1 in 43K | 238 | Kaja | 10 |
| GB United Kingdom | — | 168 | 103 rec. | — | 5 | Kaja | 41 |
| RS Serbia | — | 149 | 71 rec. | — | — | Kaja | 19 |
| IS Iceland | — | 72 | — | 1 in 4.9K | 72 | — | — |
| SK Slovakia | — | 71 | 13 rec. | — | — | Kaja | 18 |
Roughly 28K people in Poland bear this name (about 1 in 1.3K). Estimates project the name's share of our records onto national population, so each is only as good as the record base beside it — the Basis column gives that base; rows marked △ rest on fewer records than the estimate itself and are order-of-magnitude at best.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table. How that works.
Languages●
- Polish127K65%
- Norwegian Bokmål16K8%
- Hungarian8.7K4%
- Croatian7.7K4%
- Hindi5.6K3%
Show as table
| Name | Records | Note |
|---|---|---|
| Polish | 127,031 | 65% |
| Norwegian Bokmål | 16,298 | 8% |
| Hungarian | 8,714 | 4% |
| Croatian | 7,729 | 4% |
| Hindi | 5,586 | 3% |
Language is read off each record's context, not declared by the bearer; a share is of all records for this spelling.
Other recorded senses●
Kaja is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Polish, third-person singular present of kajać
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In German, ) Caja; 2Kaya; Caya: weibl. Vom., schwedische Kurzform von
as a nameDUDEN Lexikon der Vornamen
In men, The fibre of the Nduvu fronds called piassaba
as a wordMende Natural History Vocabulary
In jpx-pro, Torreya nucifera
as a wordStarLing Tower of Babel etymological databases (Starostin et al.)
In ban, mountainward (direction); towards the mountain (i.e. towards Mount Agung)
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.
Over time●
Show as table
| Year | records |
|---|---|
| 1946 | 5 |
| 1954 | 5 |
| 1956 | 4 |
| 1960 | 7 |
| 1962 | 4 |
| 1963 | 7 |
| 1964 | 10 |
| 1965 | 5 |
| 1966 | 5 |
| 1967 | 5 |
| 1968 | 9 |
| 1969 | 7 |
| 1970 | 5 |
| 1971 | 7 |
| 1972 | 18 |
| 1973 | 8 |
| 1974 | 16 |
| 1975 | 12 |
| 1976 | 25 |
| 1977 | 22 |
| 1978 | 21 |
| 1979 | 36 |
| 1980 | 39 |
| 1981 | 44 |
| 1982 | 51 |
| 1983 | 36 |
| 1984 | 54 |
| 1985 | 58 |
| 1986 | 60 |
| 1987 | 76 |
| 1988 | 91 |
| 1989 | 88 |
| 1990 | 92 |
| 1991 | 99 |
| 1992 | 78 |
| 1993 | 91 |
| 1994 | 94 |
| 1995 | 95 |
| 1996 | 99 |
| 1997 | 99 |
| 1998 | 96 |
| 1999 | 127 |
| 2000 | 155 |
| 2001 | 145 |
| 2002 | 153 |
| 2003 | 137 |
| 2004 | 147 |
| 2005 | 150 |
| 2006 | 153 |
| 2007 | 143 |
| 2008 | 117 |
| 2009 | 129 |
| 2010 | 121 |
| 2011 | 87 |
| 2012 | 88 |
| 2013 | 79 |
| 2014 | 67 |
| 2015 | 80 |
| 2016 | 90 |
| 2017 | 82 |
| 2018 | 117 |
| 2019 | 97 |
| 2020 | 94 |
| 2021 | 74 |
| 2022 | 97 |
| 2023 | 87 |
| 2024 | 85 |
| 2025 | 113 |
NO SSB — Navn (1880–present) — 68 years between 1946–2025. One register's own figures, never a sum across registers: two registers counting the same people would double them.
Notable people with this name●
- Kaja Silvermanb. 1947USAmerican film theorist
- Kaja Kallasb. 1977EEEstonian politician and former prime minister of Estonia (born 1977)
- Kaja Schmidt-Tychsenb. 1981DEGerman actress
- Kaja Paschalskab. 1986PLPolish actress, singer
- Kaja Roguljb. 1986HRCroatian footballer
- Kaja Brielleb. 1994USactress
- Kaja Grobelnab. 1995BEBelgian volleyball player
- Kaja Juvanb. 2000SISlovenian tennis player
- Kaja Kajzerb. 2000SISlovene judoka
- Kaja ChanPLHong Kong-Polish actress
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
Evidence●
Attested in 70 sources across 31 countries.
Reference works 4
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikipedia given-name tokens
- Wikipedia surname tokens
- Wikidata name items (native-script + romanized given/family names)
These works list the name; their figures are licensed and are not reproduced here.
Register rows as of the 2026-09-12 data build · 585 rows in the corpus for this spelling.
Frequently asked questions
- How common is the name Kaja?
- We estimate roughly 42 thousand people bear Kaja (counting its spellings and scripts) across 14 countries in our records.
- In which country does Kaja have the most bearers?
- We estimate about 28 thousand people bear Kaja in Poland, more than in any other country in our records, where it is most often spelled kaja.
- Where is Kaja most common?
- Measured as a share of residents rather than as a count, Kaja is densest in Slovenia — about 1 in 487 people — even though Poland holds more of our records for it.
- How common is Kaja compared with other names?
- In Poland, Kaja is the 246th most common given name of 66,904 given names recorded there.
- Is Kaja a male or female name?
- Kaja is a female name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- What does the name Kaja mean?
- Recorded meaning: a diminutive of the female given name Katarina, also explained as the feminine form of Kai
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/kajaThe same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use. Bulk access and licensing.
About this data
Data snapshot . Figures are rebuilt periodically and will change.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Kaja” — the 246th most common given name in Poland. Data snapshot 2026-09-12.