Given name & surname
Cahir
“a mighty warrior”
Cahir is used as a given name and a surname. One Irish interpretation is “a mighty warrior.”
Meaning & origin
What it means
One Irish interpretation is “a mighty warrior.”
Where it comes from
An origin associated with this spelling is Irish.
How it developed
In Irish use, Cahir is used as a spelling variant of Cathaoir.
The story
Published U.S. birth records include this spelling as early as 2017. This is the earliest published observation available here, rather than a date for the name’s origin.
From dated birth records
Cahir through the years
- Babies since 1880
- 39
- 39 boys · 0 girls
- Most popular year
- 2019
- 7 babies
- 2025
- 5
- #12,346 for boys
- 2021–25 vs 2016–20
- —
- Too few births to compare
By the numbers
In 2025, this name appeared in 5 U.S. birth records for boys, ranking No. 12,346 among boys’ names. The recent annual counts are too incomplete to establish a ten-year comparison. Its largest published annual count for boys was 7 in 2019. Published U.S. population figures for this spelling include 138 as a surname in 2020.
From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.
Cahir’s family of names
Cahir has a feminine form in Cahira. Cahir has a related form in Cahear. Cahir has a related form in Caheer.
Inner ring: nicknames and forms · outer: across languages.
Nicknames & forms 6
Diminutives, pet forms, short forms and variants used alongside the name.
Across languages 1
Equivalents and cognates in other languages, plus older forms it grew from.
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