Iarlaith
Say it: EER-la
BoyIrish8 letters2 syllables
#85
in Ireland (2025)
#88 with spellings combined
68
babies in 2025
#88
best rank (2025)
622
babies since 1991
Up 79
10-year rank change
Iarlaith through the years
Compare with another name →Show the numbers
| Year | Babies (boys) | Rank |
|---|---|---|
| 2025 | 68 | #88 |
| 2024 | 59 | #98 |
| 2023 | 48 | #119 |
| 2022 | 50 | #121 |
| 2021 | 57 | #114 |
| 2020 | 39 | #147 |
| 2019 | 39 | #149 |
| 2018 | 32 | #177 |
| 2017 | 28 | #203 |
| 2016 | 32 | #182 |
| 2015 | 37 | #167 |
| 2014 | 29 | #203 |
| 2013 | 24 | #229 |
| 2012 | 17 | #279 |
| 2011 | 14 | #308 |
| 2010 | 13 | #322 |
| 2009 | 10 | #366 |
| 2008 | 6 | #472 |
| 2006 | 4 | #492 |
| 2005 | 3 | #518 |
| 2003 | 3 | #500 |
| 2002 | 4 | #393 |
| 2001 | 3 | #409 |
| 1991 | 3 | #324 |
Source: CSO, Irish Babies' Names (VSA50, VSA60), CC BY 4.0. Spellings with and without fadas are combined; the CSO only recorded fadas from 2018.
★ What does Iarlaith mean?
Uncertain
Irish, from Iarlaithe, the name of the sixth-century saint of Tuam; Jarlath is the English form.
Say it right
EERla
The final "th" is barely sounded. The English form Jarlath is said JAR-lath.
The story of Iarlaith
Iarlaith comes from Iarlaithe, the name of a sixth-century Irish saint. What the name means is not known for certain. In English it is usually written Jarlath.
Saint Iarlaith, given in full as Iarlaithe mac Loga, first founded a monastery at Cloonfush, near Tuam, and later made Tuam itself his base. His school there drew students from all over Ireland, and medieval texts count Saint Brendan among them. He is the patron of the Archdiocese of Tuam, where his broken chariot wheel is still used as a symbol. His feast is kept on 6 June.
In Ireland Iarlaith first reached the list in 1991 but stayed rare until about 2010. It has risen strongly since, and 2025 was its best year, with 68 boys and number 85 on the CSO list. It is less common in Northern Ireland, where it was 138th in 2025.
Say it differently where you're from, or spotted something wrong? Tell us.
Sources
- Wikipedia: Saint Jarlath
- CSO VSA50, Boys Names in Ireland with 3 or More Occurrences
At a glance
Similar names
Sibling ideas
Spellings counted here
| Spelling | 2025 | All years |
|---|---|---|
| Iarlaith | 68 | 619 |
| Íarlaith | under 3 | 3 |
In Northern Ireland
#138 in 2025 with 17 babies. Best rank #136 (2024); 85 babies since 2009.
Source: NISRA, Open Government Licence.