A name. A world of connections.
A given name in Swedish, Danish and 2 more
Language contexts for this entry: Swedish, Danish, Norwegian and 1 more
Matching spellings may have different histories. Explore matching entries
/kajˀ/ · Danish
01 / Meaning & origin
Kaj is a masculine given name documented in Swedish, Danish, Norwegian and 1 other language. English Wiktionary records an etymology for it.
Used in Denmark since the 15th century and Latinised as Caius, possibly originating from the Roman name. Related to modern English and German Kai.
02 / Across borders
Explore published naming statistics and documented language connections around the world.
The name atlas
10
countries in our sources
Select a country to follow Kaj’s connections around the world.
8 countries with published statistics. Language records show cultural connections; they do not measure how common a name is.
Selected country
Published statistics
United States, 2025: 5 boys (rank 12008).
Explore United States4 of 10 countries
03 / By the numbers
Follow the spelling through the years, one published dataset at a time.
1880–2025 Spelling: Kaj
Recorded category boys
Hover to explore a year. Use arrow keys when a chart point has focus.
Source: US Social Security Administration; redistributed by nkrishnaswami · SSA national baby names, 1880–2025 (CC0 redistribution)
Integer application counts retained without rounding.
Per million is unavailable: this source has no matching published total.
| Year | Applications | Rank | Status |
|---|---|---|---|
| 1880 | no value | no value | not covered |
| 1881 | no value | no value | not covered |
| 1882 | no value | no value | not covered |
| 1883 | no value | no value | not covered |
| 1884 | no value | no value | not covered |
| 1885 | no value | no value | not covered |
| 1886 | no value | no value | not covered |
| 1887 | no value | no value | not covered |
| 1888 | no value | no value | not covered |
| 1889 | no value | no value | not covered |
| 1890 | no value | no value | not covered |
| 1891 | no value | no value | not covered |
| 1892 | no value | no value | not covered |
| 1893 | no value | no value | not covered |
| 1894 | no value | no value | not covered |
| 1895 | no value | no value | not covered |
| 1896 | no value | no value | not covered |
| 1897 | no value | no value | not covered |
| 1898 | no value | no value | not covered |
| 1899 | no value | no value | not covered |
| 1900 | no value | no value | not covered |
| 1901 | no value | no value | not covered |
| 1902 | no value | no value | not covered |
| 1903 | no value | no value | not covered |
| 1904 | no value | no value | not covered |
| 1905 | no value | no value | not covered |
| 1906 | no value | no value | not covered |
| 1907 | no value | no value | not covered |
| 1908 | no value | no value | not covered |
| 1909 | no value | no value | not covered |
| 1910 | no value | no value | not covered |
| 1911 | no value | no value | not covered |
| 1912 | no value | no value | not covered |
| 1913 | no value | no value | not covered |
| 1914 | no value | no value | not covered |
| 1915 | no value | no value | not covered |
| 1916 | no value | no value | not covered |
| 1917 | no value | no value | not covered |
| 1918 | no value | no value | not covered |
| 1919 | no value | no value | not covered |
| 1920 | no value | no value | not covered |
| 1921 | no value | no value | not covered |
| 1922 | no value | no value | not covered |
| 1923 | no value | no value | not covered |
| 1924 | no value | no value | not covered |
| 1925 | no value | no value | not covered |
| 1926 | no value | no value | not covered |
| 1927 | no value | no value | not covered |
| 1928 | no value | no value | not covered |
| 1929 | no value | no value | not covered |
| 1930 | no value | no value | not covered |
| 1931 | no value | no value | not covered |
| 1932 | no value | no value | not covered |
| 1933 | no value | no value | not covered |
| 1934 | no value | no value | not covered |
| 1935 | no value | no value | not covered |
| 1936 | no value | no value | not covered |
| 1937 | no value | no value | not covered |
| 1938 | no value | no value | not covered |
| 1939 | no value | no value | not covered |
| 1940 | no value | no value | not covered |
| 1941 | no value | no value | not covered |
| 1942 | no value | no value | not covered |
| 1943 | no value | no value | not covered |
| 1944 | no value | no value | not covered |
| 1945 | no value | no value | not covered |
| 1946 | no value | no value | not covered |
| 1947 | no value | no value | not covered |
| 1948 | no value | no value | not covered |
| 1949 | no value | no value | not covered |
| 1950 | no value | no value | not covered |
| 1951 | no value | no value | not covered |
| 1952 | no value | no value | not covered |
| 1953 | no value | no value | not covered |
| 1954 | no value | no value | not covered |
| 1955 | no value | no value | not covered |
| 1956 | 5 | 3,942 | observed |
| 1957 | no value | no value | not covered |
| 1958 | no value | no value | not covered |
| 1959 | no value | no value | not covered |
| 1960 | no value | no value | not covered |
| 1961 | 6 | 3,652 | observed |
| 1962 | no value | no value | not covered |
| 1963 | no value | no value | not covered |
| 1964 | no value | no value | not covered |
| 1965 | no value | no value | not covered |
| 1966 | 6 | 3,537 | observed |
| 1967 | 5 | 3,966 | observed |
| 1968 | 5 | 4,136 | observed |
| 1969 | 8 | 3,314 | observed |
| 1970 | no value | no value | not covered |
| 1971 | no value | no value | not covered |
| 1972 | no value | no value | not covered |
| 1973 | no value | no value | not covered |
| 1974 | 6 | 4,634 | observed |
| 1975 | 6 | 4,797 | observed |
| 1976 | no value | no value | not covered |
| 1977 | 7 | 4,582 | observed |
| 1978 | 7 | 4,554 | observed |
| 1979 | no value | no value | not covered |
| 1980 | no value | no value | not covered |
| 1981 | 5 | 6,262 | observed |
| 1982 | no value | no value | not covered |
| 1983 | 6 | 5,484 | observed |
| 1984 | 12 | 3,459 | observed |
| 1985 | 6 | 5,785 | observed |
| 1986 | 12 | 3,653 | observed |
| 1987 | no value | no value | not covered |
| 1988 | 6 | 6,426 | observed |
| 1989 | 7 | 6,229 | observed |
| 1990 | 8 | 5,823 | observed |
| 1991 | no value | no value | not covered |
| 1992 | 8 | 6,128 | observed |
| 1993 | 7 | 6,816 | observed |
| 1994 | 6 | 7,770 | observed |
| 1995 | 7 | 6,992 | observed |
| 1996 | 13 | 4,613 | observed |
| 1997 | 13 | 4,668 | observed |
| 1998 | no value | no value | not covered |
| 1999 | 12 | 5,317 | observed |
| 2000 | 15 | 4,785 | observed |
| 2001 | 10 | 6,445 | observed |
| 2002 | 15 | 4,919 | observed |
| 2003 | 14 | 5,271 | observed |
| 2004 | 10 | 6,976 | observed |
| 2005 | 10 | 7,096 | observed |
| 2006 | 20 | 4,520 | observed |
| 2007 | 11 | 7,094 | observed |
| 2008 | 15 | 5,767 | observed |
| 2009 | 20 | 4,748 | observed |
| 2010 | 16 | 5,478 | observed |
| 2011 | 19 | 4,822 | observed |
| 2012 | 16 | 5,482 | observed |
| 2013 | 12 | 6,603 | observed |
| 2014 | 10 | 7,562 | observed |
| 2015 | 15 | 5,746 | observed |
| 2016 | 11 | 7,157 | observed |
| 2017 | 10 | 7,546 | observed |
| 2018 | 17 | 5,320 | observed |
| 2019 | 8 | 8,889 | observed |
| 2020 | 8 | 8,739 | observed |
| 2021 | 10 | 7,587 | observed |
| 2022 | 6 | 10,863 | observed |
| 2023 | 8 | 8,921 | observed |
| 2024 | 15 | 5,904 | observed |
| 2025 | 5 | 12,008 | observed |
Statistics count the spelling “Kaj” as recorded by the publisher. When a spelling has several independent origins, the counts are not split between them. Counts measure applications. Gaps are years without a published value, not zeros.
Rates per million are unavailable for this series because no compatible denominator has been imported.
Retrieved 2026-10-15 · CC0-1.0
Read our methodology04 / Through time
No historical attestations or sourced notable bearers are recorded yet. Historical databases are being evaluated for reuse permission; nothing is listed until a record can be cited.
A little story to keep
Take the story of Kaj with you. Create a personal name passport with its meaning, roots and connections.
06 / Behind the facts
Review status: Source-reported — no editorial review recorded yet. Last data change 2026-10-15.
SSA national baby names, 1880–2025 (CC0 redistribution)
US Social Security Administration; redistributed by nkrishnaswami · CC0-1.0 · retrieved 2026-10-15
Norway — published individual first-name birth counts, 1945–2025
Statistics Norway (SSB) · CC-BY-4.0 · retrieved 2026-10-15
Imiona nadawane dzieciom w Polsce — first given names of children, PESEL register, 2000-2025 (national)
Ministerstwo Cyfryzacji (Ministry of Digital Affairs), Poland — PESEL register; published on dane.gov.pl · CC0-1.0 · retrieved 2026-10-15
Netherlands — SVB newborn names from child-benefit administration, 2017–2025
Sociale Verzekeringsbank (SVB), Netherlands · Dutch public-sector database reuse assessment; no standard publisher licence stated · retrieved 2026-10-15
Statistik Austria — Vornamen (OGDEXT_VORNAMEN_1): first names of live births, Austria, 1984-2025 (national counts from district rows)
Statistik Austria (Bundesanstalt Statistik Österreich) · CC-BY-4.0 · retrieved 2026-10-15
South Australia — Popular Baby Names, per-year lists including names given once, 1944-2017
Attorney-General's Department, South Australia (via data.sa.gov.au) · CC-BY-4.0 · retrieved 2026-10-15
Finland — first given names of living Finnish citizens in Finland or abroad, 2026-08-03
Digital and Population Data Services Agency (DVV), Finland · CC-BY-4.0 · retrieved 2026-10-15
Ireland — babies' first names with three or more occurrences, 1964–2025
Central Statistics Office (CSO), Ireland · CC-BY-4.0 · retrieved 2026-10-15
Wiktionary text: CC BY-SA 4.0. Wikidata: CC0. Commons recordings retain their individual file licences. Complete attribution is available in each group above and alongside each chart.
