UK boy's name
Kielan
A masculine name of Irish origin meaning "brilliant, radiant".
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.
Kielan is a boy's name in the UK records. People looking for Kielan popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #5119, with 3 babies registered with the name. Its strongest year in the published records was 2004, with 10 births.
This profile covers 115 England and Wales registrations across 22 recorded years from 1997 to 2024. 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 30% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 114 living people in the UK are called Kielan. 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
- • Kielan ranked #5119 for boys in England and Wales in 2024, with 3 registrations.
- • The name peaked in 2004, when 10 boys were registered as Kielan.
- • About 114 living people in the UK are estimated to have Kielan as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#5119
2024
Births in 2024
3
Latest year
Peak year
2004
10 births
Estimated living
114
2026
Meaning
What does Kielan mean?
The name Kielan is a variant of the Irish name Cillian, which is derived from the Gaelic word "cill" meaning "church" or "monastery." It is believed to have originated as a surname among Irish clans during the Middle Ages.
The earliest recorded use of the name Kielan can be traced back to the 7th century, when Saint Kielan of Inishcaltra, an Irish monk and missionary, lived on the island of Inishcaltra in Lough Derg, County Galway, Ireland. He established a monastery there and is venerated as the patron saint of the island.
In the 9th century, Kielan of Disert-Nuadhain was an Irish abbot and scholar who served as the head of the monastic school at Disert-Nuadhain (now Disert, County Kilkenny) in Ireland. He was known for his writings on theology and philosophy.
Another notable figure with the name Kielan was Kielan Óg Ó Rothláin, an Irish poet and historian who lived in the 16th century. He was a member of the Ó Rothláin family, a prominent bardic family from County Westmeath, Ireland, and is known for his poetry and historical writings.
In the 17th century, Kielan Ó Máille was an Irish chieftain and leader of the Ó Máille clan in County Mayo, Ireland. He played a significant role in the Irish Confederate Wars, leading his clan in support of the Irish Confederates against the English forces.
In more recent times, Kielan Mellitte was an American author and playwright who lived from 1917 to 2006. He was best known for his plays and novels that explored themes of family, identity, and the African-American experience.
While the name Kielan has its roots in Irish culture and history, it has gained popularity in various parts of the world, particularly in English-speaking countries, as a unique and distinctive name with cultural significance.
Sourced from namecensus.com.
Popularity
Kielan over time
The chart below shows babies named Kielan 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 Kielan, the clearest high point is 2004. The latest England and Wales figure is 3 births in 2024, compared with 10 at the peak.
Babies born per year
Decades
Kielan by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Kielan 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 | #4572 | 10 | 3 |
| 2010s | #3525 | 34 | 7 |
| 2000s | #2453 | 55 | 9 |
| 1990s | #2115 | 16 | 3 |
Related
Names similar to Kielan
- 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
Kielan: questions and answers
How popular is the name Kielan in the UK right now?
In 2024, Kielan was ranked #5119 for boys in England and Wales, with 3 births registered.
When was Kielan most popular?
The peak year on record was 2004, with 10 babies registered as Kielan in England and Wales.
What is the meaning and origin of Kielan?
A masculine name of Irish origin meaning "brilliant, radiant".
How many people are called Kielan in the UK?
A total of 115 babies have been registered as Kielan across the 22 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.