UK boy's name
Kolby
From the Old Norse name Kolbrandr, meaning "coal-bright" or "sword-bright".
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.
Kolby is a boy's name in the UK records. People looking for Kolby popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #1322, with 20 babies registered with the name. Its strongest year in the published records was 2023, with 28 births.
This profile covers 223 England and Wales registrations across 16 recorded years from 2005 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 71% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 261 living people in the UK are called Kolby. 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
- • Kolby ranked #1322 for boys in England and Wales in 2024, with 20 registrations.
- • The name peaked in 2023, when 28 boys were registered as Kolby.
- • Kolby ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #312 in 2023.
- • About 261 living people in the UK are estimated to have Kolby as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#1322
2024
Births in 2024
20
Latest year
Peak year
2023
28 births
Estimated living
261
2026
Meaning
What does Kolby mean?
The name Kolby is of Scandinavian origin, derived from the Old Norse word "kolr," which means "blacksmith." It is believed to have first emerged as a surname in the Viking era, referring to those who worked as blacksmiths or lived near a blacksmith's forge.
The earliest recorded use of the name Kolby dates back to the 11th century in Norway and Denmark. One of the earliest known individuals with this name was Kolby Eriksson, a Norwegian blacksmith who lived in the late 11th century and was renowned for his exceptional craftsmanship.
In the 12th century, the name Kolby appeared in the Icelandic sagas, particularly in the Njáls saga, where it was mentioned as the name of a character. This suggests that the name had gained popularity and recognition among the Norse people during that time.
As the name spread across Scandinavia, it also found its way into other European regions, such as England and Scotland, where it was adapted to various spellings like Colby and Coleby. One notable figure from this era was Colby of Crowland, an English monk and chronicler who lived in the late 12th century and wrote about the history of the Crowland Abbey.
In the 13th century, the name Kolby was recorded in Iceland, with Kolby Bjarnason being a prominent figure. He was a chieftain and lawspeaker in the Icelandic Commonwealth, known for his wisdom and leadership during a turbulent period in the country's history.
Throughout the Middle Ages and the Renaissance, the name Kolby continued to be used across Scandinavia and other parts of Europe, although its popularity waxed and waned. One notable bearer of the name was Colby Tanner, an English merchant and explorer who traveled to the Americas in the late 16th century and documented his experiences in a travelogue.
In the 19th century, the name Kolby resurfaced in various parts of the world, particularly in the United States, where it was adopted by families of Scandinavian descent. One of the most famous individuals with this name was Kolby Allerton, an American businessman and philanthropist who lived from 1835 to 1912 and was known for his contributions to education and social welfare initiatives.
Sourced from namecensus.com.
Popularity
Kolby over time
The chart below shows babies named Kolby registered in England and Wales in the years where the name appears in the published records, from 2005 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 Kolby, the clearest high point is 2023. The latest England and Wales figure is 20 births in 2024, compared with 28 at the peak.
Babies born per year
Decades
Kolby by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Kolby 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 | #1271 | 108 | 5 |
| 2010s | #2102 | 105 | 9 |
| 2000s | #3197 | 10 | 2 |
Geography
Where Kolby is most common
The bars show the latest published local birth counts for Kolby. 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.
Kolby ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #312 in 2023.
Across the UK
Kolby in Scotland and Northern Ireland
Scotland (NRS)
#727 in 2024
7 years of NRS records, 31 total registered
Northern Ireland (NISRA)
#312 in 2023
2 years of NISRA records, 8 total registered
Related
Names similar to Kolby
- Kieran 30,429
- Kyle 28,463
- Kai 24,432
- Kian 17,666
- Kayden 8,305
- Kevin 7,927
- Kane 7,149
- Kaiden 5,762
- Kieron 4,547
- Kacper 4,366
- Kye 4,012
- Kit 3,529
FAQ
Kolby: questions and answers
How popular is the name Kolby in the UK right now?
In 2024, Kolby was ranked #1322 for boys in England and Wales, with 20 births registered.
When was Kolby most popular?
The peak year on record was 2023, with 28 babies registered as Kolby in England and Wales.
What is the meaning and origin of Kolby?
From the Old Norse name Kolbrandr, meaning "coal-bright" or "sword-bright".
How many people are called Kolby in the UK?
A total of 223 babies have been registered as Kolby across the 16 years of ONS England & Wales records shown here, plus 31 more in Scotland and 8 in Northern Ireland.
Where is Kolby most common?
In the latest published local rankings, Kolby ranks best in Northern Ireland, where it placed #312 in 2023. 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.