UK girl's name
Kacia
A Polish feminine diminutive of Katarzyna meaning "pure".
For 2026, the newest official UK baby-name figures on this page are from 2015. That release is the current official benchmark rather than a forecast.
Kacia is a girl's name in the UK records. People looking for Kacia popularity in 2026 should use the latest official release, which is 2015 in this profile. In that release it ranked #5730, with 3 babies registered with the name. Its strongest year in the published records was 2006, with 6 births.
This profile covers 18 England and Wales registrations across 5 recorded years from 2004 to 2015. The figures come from ONS England and Wales, 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 50% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 18 living people in the UK are called Kacia. 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 2016 or 2026.
Key insights
- • Kacia ranked #5730 for girls in England and Wales in 2015, with 3 registrations.
- • The name peaked in 2006, when 6 girls were registered as Kacia.
- • About 18 living people in the UK are estimated to have Kacia as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#5730
2015
Births in 2015
3
Latest year
Peak year
2006
6 births
Estimated living
18
2026
Meaning
What does Kacia mean?
The name Kacia is a diminutive form of the Polish name Katarzyna, which is derived from the Greek name Aikaterine. The name Aikaterine itself is a combination of the Greek words "katharos" meaning "pure" and "katara" meaning "torture." It is believed to have originated in the 4th century CE.
The name Katarzyna was brought to Poland in the 10th century by missionaries who were spreading Christianity. Over time, it became a popular name in the region, and various diminutive forms like Kacia, Kasia, and Kaska emerged.
One of the earliest recorded instances of the name Kacia can be found in the 16th century Polish novel "The Adventures of the Valiant Knight Errant Don Quixote" by Miguel de Cervantes Saavedra, where a character named Kacia is mentioned.
Throughout history, several notable individuals have borne the name Kacia. One of the earliest was Kacia Mirecka (1480-1551), a Polish noblewoman and landowner who played a significant role in the development of the town of Mirecz.
Another notable figure was Kacia Gąsiorowska (1609-1677), a Polish poet and writer who is considered one of the foremost literary figures of the Polish Baroque period.
In the 18th century, Kacia Puławska (1718-1782) was a prominent Polish aristocrat and philanthropist who founded several schools and hospitals in the region of Puławy.
More recently, Kacia Kozłowska (1826-1892) was a Polish activist and educator who fought for women's rights and established several schools for girls in Warsaw.
Kacia Kowalska (1905-1989) was a Polish actress and singer who gained fame for her roles in numerous Polish films and theatrical productions in the mid-20th century.
While these are just a few examples, the name Kacia has been used by many notable individuals throughout Polish history, reflecting its deep roots and cultural significance in the region.
Sourced from namecensus.com.
Popularity
Kacia over time
The chart below shows babies named Kacia registered in England and Wales in the years where the name appears in the published records, from 2004 to 2015. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Kacia, the clearest high point is 2006. The latest England and Wales figure is 3 births in 2015, compared with 6 at the peak.
Babies born per year
Decades
Kacia by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Kacia 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 |
|---|---|---|---|
| 2010s | #5735 | 9 | 3 |
| 2000s | #3857 | 9 | 2 |
Related
Names similar to Kacia
- Katie 53,185
- Keira 14,411
- Katherine 11,323
- Kayleigh 10,677
- Kate 10,276
- Kelsey 7,224
- Kiera 7,218
- Kayla 6,541
- Kirsty 6,384
- Khadija 5,948
- Kimberley 5,189
- Kaitlyn 5,137
FAQ
Kacia: questions and answers
How popular is the name Kacia in the UK right now?
In 2015, Kacia was ranked #5730 for girls in England and Wales, with 3 births registered.
When was Kacia most popular?
The peak year on record was 2006, with 6 babies registered as Kacia in England and Wales.
What is the meaning and origin of Kacia?
A Polish feminine diminutive of Katarzyna meaning "pure".
How many people are called Kacia in the UK?
A total of 18 babies have been registered as Kacia across the 5 years of ONS England & Wales records shown here.
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.