NameCensus.

UK girl's name

Kaja

A feminine Scandinavian name meaning "pure" or "innocent".

For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.

Kaja is a girl's name in the UK records. People looking for Kaja popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #1449, with 22 babies registered with the name. Its strongest year in the published records was 2018, with 61 births.

This profile covers 779 England and Wales registrations across 27 recorded years from 1997 to 2024. The figures come from ONS England and Wales, NRS Scotland and NISRA Northern Ireland, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.

The latest count is about 36% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 843 living people in the UK are called Kaja. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2025 or 2026.

Key insights

  • Kaja ranked #1449 for girls in England and Wales in 2024, with 22 registrations.
  • The name peaked in 2018, when 61 girls were registered as Kaja.
  • Kaja ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #434 in 2018.
  • About 843 living people in the UK are estimated to have Kaja as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#1449

2024

Births in 2024

22

Latest year

Peak year

2018

61 births

Estimated living

843

2026

Meaning

What does Kaja mean?

The name Kaja is of Scandinavian origin, primarily used in Norway and Sweden. It is believed to have derived from the Old Norse word "kåt," meaning "cheerful" or "merry." This name gained popularity in the Middle Ages and has been steadily used throughout the centuries.

One of the earliest recorded instances of the name Kaja can be found in the Icelandic Sagas, a collection of historical narratives that date back to the 13th and 14th centuries. In these texts, Kaja was occasionally used as a feminine name, although its usage was relatively rare at the time.

During the Renaissance period, the name Kaja became more prevalent in parts of Scandinavia. One notable figure bearing this name was Kaja Renata Gyldenløve (1633-1689), a Norwegian countess and the daughter of King Christian IV of Denmark and Norway.

In the 18th century, Kaja Cathrine Dorthea Brügmann (1728-1793) was a prominent Danish painter and engraver, known for her portraits and landscapes. Her works are still celebrated in Scandinavian art circles.

Moving into the 19th century, Kaja Frederika Palnæs (1810-1895) was a Norwegian novelist and playwright. She is remembered for her contributions to the literary scene of her time and her efforts in promoting women's rights.

In more recent history, Kaja Nordengen (1909-1997) was a Norwegian actress and singer who gained fame for her performances on stage and in films. She was particularly renowned for her interpretations of traditional Norwegian folk songs.

While the name Kaja is primarily associated with Scandinavian cultures, it has also gained some popularity in other parts of the world, particularly in regions with strong Nordic influences or communities. However, its usage remains relatively limited outside of its traditional realm.

Sourced from namecensus.com.

Popularity

Kaja over time

The chart below shows babies named Kaja registered in England and Wales in the years where the name appears in the published records, from 1997 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Kaja, the clearest high point is 2018. The latest England and Wales figure is 22 births in 2024, compared with 61 at the peak.

Babies born per year

Kaja
015314661199720102024

Decades

Kaja by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Kaja was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.

Decade Average rank Total births Years covered
2020s #1187 157 5
2010s #757 516 10
2000s #2533 96 9
1990s #3622 10 3

Geography

Where Kaja is most common

The bars show the latest published local birth counts for Kaja. They are useful for spotting where the name is showing up in real numbers, while the rank beside each bar shows how strongly it performs inside that region.

Kaja ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #434 in 2018.

Scotland
5
Northern Ireland
3

Across the UK

Kaja in Scotland and Northern Ireland

Scotland (NRS)

#558 in 2021

13 years of NRS records, 56 total registered

Northern Ireland (NISRA)

#434 in 2018

4 years of NISRA records, 12 total registered

Related

Names similar to Kaja

FAQ

Kaja: questions and answers

How popular is the name Kaja in the UK right now?

In 2024, Kaja was ranked #1449 for girls in England and Wales, with 22 births registered.

When was Kaja most popular?

The peak year on record was 2018, with 61 babies registered as Kaja in England and Wales.

What is the meaning and origin of Kaja?

A feminine Scandinavian name meaning "pure" or "innocent".

How many people are called Kaja in the UK?

A total of 779 babies have been registered as Kaja across the 27 years of ONS England & Wales records shown here, plus 56 more in Scotland and 12 in Northern Ireland.

Where is Kaja most common?

In the latest published local rankings, Kaja ranks best in Northern Ireland, where it placed #434 in 2018. The regional bars on this page use birth counts, so they also reflect the size of each region.

Which records is this page based on?

The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.