Kaj
Boy · KY · Scandinavian
Kaj is a boys' name of Scandinavian origin. In 2025 it ranked 12,003rd for boys in the US (5 babies).
What does Kaj mean?
Scandinavian: Danish and Swedish form of Kai, of disputed root
Danish playwright and pastor Kaj Munk, murdered by the Gestapo in 1944, is a famous bearer.
- Say it
- KY
Is Kaj a girl's or a boy's name?
Kaj is a boys' name. In 2025, it was given to 5 boys in the US. Too few girls were given it to be listed.
How popular is Kaj in the UK?
No boys in the UK were given it in 2025, or too few to be listed. Its busiest year was 2013, with 6 boys.
Half of all the boys named Kaj in the UK since 1996 were born between 2000 and 2013. It was already well used in 1996, when the records begin, so earlier boys aren't counted.
Kaj in the UK, year by year
| Year | Boys | Rank |
|---|---|---|
| 2021 | 3 | #4,989 |
| 2020 | 3 | #4,803 |
| 2019 | 3 | #4,913 |
| 2018 | 0 | – |
| 2017 | 0 | – |
| 2016 | 0 | – |
| 2015 | 0 | – |
| 2014 | 3 | #4,829 |
| 2013 | 6 | #3,096 |
| 2012 | 0 | – |
| 2011 | 0 | – |
| 2010 | 0 | – |
| 2009 | 0 | – |
| 2008 | 3 | #4,615 |
| 2007 | 0 | – |
| 2006 | 4 | #3,522 |
| 2005 | 3 | #3,992 |
| 2004 | 4 | #3,147 |
| 2003 | 4 | #2,990 |
| 2002 | 0 | – |
| 2001 | 2 | #4,101 |
| 2000 | 3 | #3,146 |
| 1999 | 3 | #3,043 |
| 1998 | 3 | #3,021 |
| 1997 | 1 | #3,857 |
| 1996 | 4 | #2,442 |
How popular is Kaj in the US?
- Rank in 2025
- #12,003among boys
- Babies in 2025
- 5about 1 in 340,000 boys
- Five-year trend
- Too rare to calltoo few babies to tell
- Same name in a class
- under 1%chance among 15 boys
In 2025, 5 boys in the US were named Kaj, making it the 12,003rd most popular name for boys. Five years earlier, in 2020, it was 8,734th. Its busiest year was 2006, with 20 boys. It first appears in the records in 1956.
2025 had fewer boys named Kaj than any year since 1998.
Half of all the boys named Kaj in the US since 1880 were born between 1992 and 2013, the years shaded on the chart below.
In 2025, 4,193 boys in the US were given Kaj or a name that sounds the same. With every name's spellings counted this way, that ranks #90, up from #12,003 for this spelling alone.
Kaj in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 5 | #12,003 |
| 2024 | 15 | #5,899 |
| 2023 | 8 | #8,916 |
| 2022 | 6 | #10,855 |
| 2021 | 10 | #7,582 |
| 2020 | 8 | #8,734 |
| 2019 | 8 | #8,883 |
| 2018 | 17 | #5,316 |
| 2017 | 10 | #7,542 |
| 2016 | 11 | #7,152 |
| 2015 | 15 | #5,742 |
| 2014 | 10 | #7,557 |
| 2013 | 12 | #6,598 |
| 2012 | 16 | #5,476 |
| 2011 | 19 | #4,820 |
| 2010 | 16 | #5,475 |
| 2009 | 20 | #4,746 |
| 2008 | 15 | #5,762 |
| 2007 | 11 | #7,090 |
| 2006 | 20 | #4,516 |
| 2005 | 10 | #7,089 |
| 2004 | 10 | #6,970 |
| 2003 | 14 | #5,265 |
| 2002 | 15 | #4,913 |
| 2001 | 10 | #6,438 |
| 2000 | 15 | #4,779 |
| 1999 | 12 | #5,311 |
| 1998 | 0 | – |
| 1997 | 13 | #4,663 |
| 1996 | 13 | #4,606 |
| 1995 | 7 | #6,985 |
| 1994 | 6 | #7,764 |
| 1993 | 7 | #6,809 |
| 1992 | 8 | #6,120 |
| 1991 | 0 | – |
| 1990 | 8 | #5,816 |
| 1989 | 7 | #6,222 |
| 1988 | 6 | #6,420 |
| 1987 | 0 | – |
| 1986 | 12 | #3,649 |
| 1985 | 6 | #5,780 |
| 1984 | 12 | #3,457 |
| 1983 | 6 | #5,481 |
| 1982 | 0 | – |
| 1981 | 5 | #6,260 |
| 1980 | 0 | – |
| 1979 | 0 | – |
| 1978 | 7 | #4,552 |
| 1977 | 7 | #4,580 |
| 1976 | 0 | – |
| 1975 | 6 | #4,795 |
| 1974 | 6 | #4,632 |
| 1973 | 0 | – |
| 1972 | 0 | – |
| 1971 | 0 | – |
| 1970 | 0 | – |
| 1969 | 8 | #3,313 |
| 1968 | 5 | #4,135 |
| 1967 | 5 | #3,964 |
| 1966 | 6 | #3,535 |
| 1965 | 0 | – |
| 1964 | 0 | – |
| 1963 | 0 | – |
| 1962 | 0 | – |
| 1961 | 6 | #3,650 |
| 1960 | 0 | – |
| 1959 | 0 | – |
| 1958 | 0 | – |
| 1957 | 0 | – |
| 1956 | 5 | #3,940 |
Names like Kaj
Names given in the same years and the same naming tradition, with a similar sound.
Yuvraj Viraj Krish Aviraj Dhruv Krishiv Aarav Aj Veer Shiv Navraj Gurtaj
Other spellings of Kaj
More Scandinavian names
Kaia Jenson Jensen Maren Gustavo Anders Stellan Iverson Kari Kaja Larson Olsen Nea Ronya Jensyn Soley