The first name Kaja
A girl’s name.
2 syllables Female
Popularity
Babies registered in England and Wales, 1996–2025
In 2025, 16 girls were named Kaja, making it the 1,809th most popular girls’ name. It peaked in 2018, with 61 births (#657).
Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Kaja with other names.
Popularity in the United States
Babies named Kaja at birth, 1880–2025
In 2025, 16 girls born in the United States were named Kaja, the 6,973rd most popular girls’ name that year. It was used most in 2009, when 25 were.
US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.
Famous people named Kaja
4 on Wikidata, most written-about first
- Kaja KallasEstonian politician and former prime minister of Estonia (born 1977)
- Kaja GrobelnaBelgian volleyball player, born 1995
- Kaja SilvermanAmerican film theorist, born 1947
- Kaija ParveEstonian biathlete (born 1964)
Questions
- How popular is the name Kaja?
- In 2025, 16 girls born in England and Wales were named Kaja, ranking 1,809th. Its peak was 2018, with 61 births.
- Is Kaja a boy's or a girl's name?
- Mostly a girl's name: 100% of the 711 US babies named Kaja since 1880 were girls.
- When was Kaja most popular?
- 2009 in the United States, when 25 babies were named Kaja, its highest rank at 5,621st.