Tiernan
4 countries#3757 in United States, 2025Popularity across 4 countries
Each line is scaled to its own peak, so you can compare when Tiernan was in fashion in each country, whatever the population size.
Country by country
🇺🇸 United States
1,676 births recorded 1985–2025 · currently #3757 · peaked in 2009 with 95 births
Most common in: New York, California, Pennsylvania, Massachusetts, Washington
Source: Social Security Administration, official birth-registration data
🇬🇧 United Kingdom
1,397 births recorded 1996–2025 · currently #203 · peaked in 2008 with 88 births (England & Wales + Scotland + Northern Ireland combined)
Source: ONS, National Records of Scotland & NISRA (combined), official birth-registration data
Northern Ireland
1,003 births recorded 1997–2025 · currently #99 · peaked in 2008 with 64 births
Source: NISRA, official birth-registration data
🏴🏴 England & Wales
343 births recorded 1996–2021 · currently #1329 · peaked in 1999 with 24 births
Source: Office for National Statistics, official birth-registration data
🏴 Scotland
51 births recorded 2004–2025 · currently #441 · peaked in 2025 with 7 births
Source: National Records of Scotland, official birth-registration data
United States rank history
Tiernan’s rank among boys’ names, most recent 20 years on record.
| Year | Rank | vs. prior yr |
|---|---|---|
| 2006 | #1994 | — |
| 2007 | #1728 | ↑266 |
| 2008 | #1861 | ↓133 |
| 2009 | #1774 | ↑87 |
| 2010 | #1924 | ↓150 |
| 2011 | #1905 | ↑19 |
| 2012 | #2292 | ↓387 |
| 2013 | #2364 | ↓72 |
| 2014 | #2516 | ↓152 |
| 2015 | #2641 | ↓125 |
| 2016 | #3161 | ↓520 |
| 2017 | #3993 | ↓832 |
| 2018 | #3793 | ↑200 |
| 2019 | #4230 | ↓437 |
| 2020 | #4698 | ↓468 |
| 2021 | #3497 | ↑1201 |
| 2022 | #3151 | ↑346 |
| 2023 | #3347 | ↓196 |
| 2024 | #4072 | ↓725 |
| 2025 | #3757 | ↑315 |
Frequently asked questions about Tiernan
Is Tiernan a popular name?
Yes — Tiernan currently ranks #3757 among boys’ names in United States as of 2025, based on official birth records.
Is Tiernan more common for boys or girls?
Tiernan is recorded predominantly as a boys’ name in official United States birth data.
When was Tiernan most popular?
Tiernan peaked in 2009 in United States, with 95 recorded births that year.
Is Tiernan rising or falling in popularity?
In United States, Tiernan’s popularity is rising — its rank has improved from #6523 in 1985 to #3757 in 2025.
How many babies have been named Tiernan?
At least 3,073 babies have been recorded with the name Tiernan across official birth statistics in 4 countries.
Is Tiernan popular in more than one country?
Yes — Tiernan appears in official birth records in 4 countries: United States, Northern Ireland, England & Wales, Scotland.
What names are similar in popularity to Tiernan?
Based on real 2025 ranking data in United States, names ranked closest to Tiernan include Theodoros.
Similar names right now
Ranked directly next to Tiernan in United States, 2025 — a real popularity match, not a subjective list.