Tiarnan
Tiarnan was the #120 boys' name in Northern Ireland in 2025 (19 babies).
Tiarnan as a boy’s name
- US
- England & Wales
- Scotland
- Northern Ireland
- Ireland
Show the numbers
| Year | US | England & Wales | Scotland | Northern Ireland | Ireland |
|---|---|---|---|---|---|
| 2025 | — | — | — | #120 (19) | #252 (18) |
| 2024 | — | — | #619 (4) | #125 (17) | #582 (5) |
| 2023 | — | #4,108 (4) | — | #169 (13) | #472 (7) |
| 2022 | — | — | — | #163 (13) | #293 (15) |
| 2021 | — | — | — | #143 (17) | #364 (10) |
| 2020 | — | — | — | #193 (10) | #342 (12) |
| 2019 | — | — | — | #146 (17) | #257 (18) |
| 2018 | — | — | — | #128 (19) | #239 (22) |
| 2017 | — | #3,040 (6) | — | #165 (15) | #240 (22) |
| 2016 | — | — | — | #151 (18) | #184 (31) |
| 2015 | — | — | — | #201 (11) | #210 (26) |
| 2014 | — | — | — | #175 (14) | #347 (12) |
| 2013 | — | #4,685 (3) | — | #153 (17) | #271 (18) |
| 2012 | — | — | — | #161 (16) | #290 (16) |
| 2011 | — | — | — | #168 (15) | #326 (13) |
The tide so far
- Peaked in Northern Ireland in 2001 at #63.
- Rising over the last five years.
- In the Northern Ireland records since the data begins in 1997.
How common is it?
about 1 in 440 baby boys in the published Northern Ireland list for 2025.
In a group of 1,000 children born that year, you would expect to meet about 2. How we work this out.
How common, country by country
| Where | Sex | Latest year | Share | Verdict |
|---|---|---|---|---|
| Northern Ireland | Boys | 2025 | about 1 in 440 | common |
| Ireland | Boys | 2025 | about 1 in 1,300 | uncommon |
Next year
On its recent trend, Tiarnan is likely to hold steady in Northern Ireland in 2026: about 1 in 430 baby boys. Likely range 1 in 320 to 1 in 590.
Estimate, not an official figure. How we estimate.
Spellings
Official statistics count each spelling separately, so we show them side by side rather than adding them up.
| Spelling | Where | Sex | Latest rank | Babies |
|---|---|---|---|---|
| Tiarnan | England & Wales | Boys | — | too few |
| Tiarnán | Ireland | Boys | #252 | 18 |
| Tiarnan | Ireland | Boys | #577 | 5 |
| Tiarnan | Northern Ireland | Boys | #120 | 19 |
| Tiarnan | Scotland | Boys | — | too few |
| Tiarnan | US | Boys | — | too few |