UK boy's name
Cahir
An Anglicized form of Cathaoir, an Irish name meaning "watchful, wary".
Cahir is a boy's name in the UK records.
We estimate that about 444 living people in the UK are called Cahir. 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
- • Cahir ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #136 in 2024.
- • About 444 living people in the UK are estimated to have Cahir as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
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Births in -
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Peak year
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Estimated living
444
2026
Meaning
What does Cahir mean?
The name Cahir has its origins in the Irish Gaelic language, dating back to the early medieval period in Ireland. It is derived from the Old Irish word "cathair," which means "city" or "stone fortress." This name likely emerged as a descriptive name for someone who lived near or was associated with a fortified settlement or stronghold.
In ancient Irish mythology, Cahir appears as the name of several minor characters and locations, indicating its early usage in the region. One of the earliest recorded examples of the name can be found in the Annals of Ulster, a chronicle of medieval Irish history, where a man named Cahir Ua Conchobair is mentioned as a king of Connacht in the 12th century.
Throughout the Middle Ages, the name Cahir was primarily used in Ireland, particularly in the western and southern regions. It gained popularity among the Irish nobility and was borne by several notable figures. One such individual was Cahir O'Doherty, an Irish chieftain who led a rebellion against English rule in Ulster in the early 17th century (1608-1609).
In the 18th century, a prominent figure named Cahir O'Callaghan (1695-1776) gained fame as a Catholic priest and historian in County Cork, Ireland. His works, such as "The Green Book" and "The Macariae Excidium," documented the history and struggles of the Irish people during the Penal Laws.
Moving into the 19th century, a notable bearer of the name was Cahir Healy (1804-1878), an Irish politician and lawyer who served as a Member of Parliament for County Cork in the United Kingdom Parliament. He was a prominent advocate for Irish rights and played a significant role in the Repeal Movement, which sought to repeal the Act of Union between Great Britain and Ireland.
Another historical figure with the name Cahir was Cahir O'Doherty (1875-1950), an Irish language scholar and writer from County Donegal. He made significant contributions to preserving and promoting the Irish language through his literary works and advocacy efforts.
While the name Cahir has primarily remained rooted in its Irish heritage, it has also found use in other parts of the world, particularly among individuals with Irish ancestry or connections. However, its historical origins and associations with ancient Irish culture and mythology remain an essential part of its legacy.
Sourced from namecensus.com.
Geography
Where Cahir is most common
The bars show the latest published local birth counts for Cahir. 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.
Cahir ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #136 in 2024.
Across the UK
Cahir in Scotland and Northern Ireland
Northern Ireland (NISRA)
#136 in 2024
28 years of NISRA records, 447 total registered
Notable bearers
Famous people named Cahir
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Cahir O'Doherty
musician; songwriter
British musician
1977-
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Cahir Healy
politician
British politician (1877-1970)
1877-1970
Related
Names similar to Cahir
- Charlie 104,761
- Callum 65,796
- Connor 53,072
- Cameron 40,394
- Charles 33,091
- Christopher 26,849
- Caleb 15,553
- Corey 12,622
- Carter 11,505
- Cody 11,075
- Conor 10,298
- Christian 9,695
FAQ
Cahir: questions and answers
What is the meaning and origin of Cahir?
An Anglicized form of Cathaoir, an Irish name meaning "watchful, wary".
Where is Cahir most common?
In the latest published local rankings, Cahir ranks best in Northern Ireland, where it placed #136 in 2024. 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.