UK name, mostly boys
Siar
A name of an uncertain origin, possibly French or Celtic.
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.
Siar is mostly registered for boys in the UK records. People looking for Siar popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #1000, with 30 babies registered with the name. Its strongest year in the published records was 2023, with 30 births.
This profile covers 114 England and Wales registrations across 5 recorded years from 2020 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 100% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 113 living people in the UK are called Siar. 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
- • Siar ranked #1000 for boys in England and Wales in 2024, with 30 registrations.
- • The name peaked in 2023, when 30 boys were registered as Siar.
- • About 113 living people in the UK are estimated to have Siar as a first name, after adjusting past birth registrations with ONS life tables.
- • Across the England and Wales records shown here, 96.6% of Siar registrations are for boys.
Latest rank (E&W)
#1000
2024
Births in 2024
30
Latest year
Peak year
2023
30 births
Estimated living
113
2026
Gender
Boy and girl registrations for Siar
In England and Wales birth records, Siar has been registered for both boys and girls. Across the years shown here, 96.6% of registrations are for boys and 3.4% 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.
Siar registered for boys
- Ranked #1,000 in 2024
- 30 boys registered in 2024
- Peak: 2023 (30 births)
Siar registered for girls
- Ranked #4,686 in 2019
- 4 girls registered in 2019
- Peak: 2019 (4 births)
Meaning
What does Siar mean?
The name Siar is believed to have its origins in the ancient Celtic languages, specifically in the Goidelic (Gaelic) branch. It is derived from the old Irish word "siar," which means "west" or "westward." This suggests that the name may have been given to individuals who lived in or traveled to the western regions of the Celtic lands.
One of the earliest recorded instances of the name Siar can be found in the ancient Irish annals, where it is mentioned as the name of a chieftain who lived in the 7th century AD. This chieftain, known as Siar mac Conchobair, was a prominent figure in the Kingdom of Munster and was involved in several battles against neighboring kingdoms.
In the 9th century, the name Siar appeared in the historical records of the Scots, who had migrated from Ireland to what is now Scotland. Siar mac Ailpein was a Scots king who ruled from 858 to 862 AD and was known for his efforts in defending his kingdom against Viking raids.
During the Middle Ages, the name Siar was relatively uncommon but still appeared in various historical documents. One notable figure was Siar Ó Néill, an Irish chieftain who lived in the 14th century and was involved in conflicts with the Anglo-Norman settlers in Ireland.
In the 16th century, Siar mac Cuinn was a Scottish warrior who fought alongside Mary, Queen of Scots, during the Scottish Reformation. He was renowned for his bravery and loyalty to the Scottish crown.
Another interesting figure was Siar Ó Briain, an Irish poet and bard who lived in the 17th century. He was known for his compositions that celebrated the culture and traditions of the Gaelic Irish people.
It is worth noting that while the name Siar has its roots in the Celtic languages, it has been used across various cultures and regions throughout history, albeit with varying spellings and pronunciations. The name's association with the western direction has likely contributed to its adoption and adaptation in different parts of the world.
Sourced from namecensus.com.
Popularity
Siar over time
The chart below compares boys and girls registered as Siar in England and Wales, from 2019 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 Siar, the clearest high point is 2023. The latest England and Wales figure is 30 births in 2024, compared with 30 at the peak.
Babies born per year
Decades
Siar by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Siar 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 | #1279 | 114 | 5 |
Related
Names similar to Siar
- Samuel 108,505
- Sebastian 33,008
- Sam 20,889
- Stanley 16,354
- Sonny 15,028
- Sean 15,006
- Scott 12,587
- Seth 9,841
- Syed 9,050
- Stephen 8,884
- Spencer 8,333
- Steven 6,970
FAQ
Siar: questions and answers
How popular is the name Siar in the UK right now?
In 2024, Siar was ranked #1000 for boys in England and Wales, with 30 births registered.
When was Siar most popular?
The peak year on record was 2023, with 30 babies registered as Siar in England and Wales.
What is the meaning and origin of Siar?
A name of an uncertain origin, possibly French or Celtic.
How many people are called Siar in the UK?
A total of 114 babies have been registered as Siar 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.