NameCensus.

UK name, mostly girls

Kaci

A feminine name of unknown origins, possibly derived from the Irish name Casey.

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.

Kaci is mostly registered for girls in the UK records. People looking for Kaci popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #2771, with 9 babies registered with the name. Its strongest year in the published records was 2002, with 224 births.

This profile covers 1,816 England and Wales registrations across 26 recorded years from 1998 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 4% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 2,216 living people in the UK are called Kaci. 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

  • Kaci ranked #2771 for girls in England and Wales in 2024, with 9 registrations.
  • The name peaked in 2002, when 224 girls were registered as Kaci.
  • Kaci ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #313 in 2018.
  • About 2,216 living people in the UK are estimated to have Kaci as a first name, after adjusting past birth registrations with ONS life tables.
  • Across the England and Wales records shown here, 95.6% of Kaci registrations are for girls.

Latest rank (E&W)

#2771

2024

Births in 2024

9

Latest year

Peak year

2002

224 births

Estimated living

2,216

2026

Gender

Boy and girl registrations for Kaci

In England and Wales birth records, Kaci has been registered for both boys and girls. Across the years shown here, 4.4% of registrations are for boys and 95.6% are for girls.

These figures use the sex categories in the published baby-name files. They are useful for spotting how the name is used at registration, but they are not a live measure of gender identity or everyone living with the name today.

96% girls
Boys83 (4.4%)Girls1,816 (95.6%)

Kaci registered for boys

  • Ranked #3,451 in 2021
  • 5 boys registered in 2021
  • Peak: 2001 (8 births)

Kaci registered for girls

  • Ranked #2,771 in 2024
  • 9 girls registered in 2024
  • Peak: 2002 (224 births)

Meaning

What does Kaci mean?

The name Kaci is believed to have originated from the Slavic language family, specifically tracing its roots back to the Proto-Slavic word "kăčiti," which means "to curl" or "to twist." This linguistic connection suggests that the name may have initially been used to describe someone with curly or twisted hair.

During the Middle Ages, variations of the name Kaci were found in several Slavic regions, including present-day Poland, Czech Republic, and Slovakia. Historical records from this era indicate that the name was commonly used by both men and women, although its popularity varied across different regions and time periods.

One of the earliest known references to the name Kaci can be found in the 13th-century Czech chronicle "Chronica Boemorum" by Cosmas of Prague. In this text, a nobleman named Kaci is mentioned as a participant in a battle against the Prussians.

In the 15th century, a Polish noblewoman named Kaci Zamoyska gained prominence for her role in defending her family's castle during a siege. Her bravery and leadership earned her a place in Polish history and folklore.

During the Renaissance period, the name Kaci saw a resurgence in popularity, particularly in the Czech lands. One notable figure from this time was Kaci Vavřinec, a renowned Czech painter and engraver born in 1580. His works, including religious paintings and portraits, can still be found in various churches and museums across the region.

In the 19th century, a Russian writer and poet named Kaci Polonskaya (1819-1898) gained recognition for her lyrical works that explored themes of love, nature, and the human condition. Her poetry collections, such as "Stikhi" (Poems), were widely read and admired during her lifetime.

Another significant figure was Kaci Hajduk (1875-1957), a Serbian revolutionary and military leader who played a crucial role in the struggle for independence and the formation of Yugoslavia in the early 20th century. His bravery and leadership during the Balkan Wars and World War I earned him a place in Serbian national history.

These are just a few examples of notable individuals throughout history who bore the name Kaci, showcasing its rich cultural and linguistic heritage across various Slavic regions and time periods.

Sourced from namecensus.com.

Popularity

Kaci over time

The chart below compares boys and girls registered as Kaci in England and Wales, from 1998 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 Kaci, the clearest high point is 2002. The latest England and Wales figure is 9 births in 2024, compared with 224 at the peak.

Babies born per year

BoysGirls
057114170227199820112024

Decades

Kaci by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Kaci 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 #3971 31 5
2010s #1446 405 10
2000s #590 1,377 10
1990s #3848 3 1

Geography

Where Kaci is most common

The bars show the latest published local birth counts for Kaci. 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.

Kaci ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #313 in 2018.

Northern Ireland
5
Scotland
3

Across the UK

Kaci in Scotland and Northern Ireland

Scotland (NRS)

#790 in 2024

23 years of NRS records, 266 total registered

Northern Ireland (NISRA)

#313 in 2018

16 years of NISRA records, 146 total registered

Related

Names similar to Kaci

FAQ

Kaci: questions and answers

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

In 2024, Kaci was ranked #2771 for girls in England and Wales, with 9 births registered.

When was Kaci most popular?

The peak year on record was 2002, with 224 babies registered as Kaci in England and Wales.

What is the meaning and origin of Kaci?

A feminine name of unknown origins, possibly derived from the Irish name Casey.

How many people are called Kaci in the UK?

A total of 1,816 babies have been registered as Kaci across the 26 years of ONS England & Wales records shown here, plus 266 more in Scotland and 146 in Northern Ireland.

Where is Kaci most common?

In the latest published local rankings, Kaci ranks best in Northern Ireland, where it placed #313 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.