Meaning not yet researched.
Tiernan: US boys given the name each year, 1880 to 2025, from Social Security card applications. 29 in 2025. Its best rank was #1,738 in 2007.
US births per year · SSA card applications
Peaked at #1,738 in 2007; #3,840 in 2025. Every baby recorded as Tiernan in 2025 was a boy.
Baby name · US data 1880–2025
#3,840 for US boys in 2025. Its best year was 2007, at #1,738.
Hover, tap or use the arrow keys for any year. Years with fewer than five babies of a sex are not published by SSA and show as zero.
Tiernan: US boys and girls given the name each year from 1880 to 2025. 29 boys in 2025. Peak: #1,738 in 2007 · most boys in one year: 86 (2007).
In 2025, 29 US boys were named Tiernan, making it the 3,840th most common boys’ name of the year, up 345 places from #4,185 in 2024. That is 3 more than the 26 boys named Tiernan in 2024. Its best rank for boys was #1,738, reached in 2007. That year also had the most boys given the name: 86. For comparison, it was #2,678 in 2015 and unranked in 1950.
Fewer than five US girls were named Tiernan in 2025, so it does not appear in that year’s SSA list for girls. Its best rank for girls was #6,114, reached in 2002. That year also had the most girls given the name: 19. For comparison, it was #18,881 in 2015 and unranked in 1950.
Social Security card records list Tiernan in 38 years of the 146 from 1880 to 2025, starting in 1985 with 5 babies. In all, 1,676 US babies have been given the name, 12% of them girls and 88% boys. Its busiest decade was the 2000s, with 779 babies named Tiernan.
Over the 10 years from 2016 to 2025, 294 US boys were named Tiernan; the busiest of those years was 2022, with 38. In 2025 that was about 1 in 58,899 of the boys in SSA’s list for the year.
Rarer spellings such as Tiarnan are summarised on this page.
Meaning not yet researched.
We publish a meaning only with a cited source and a confidence label, and never generate one. Meanings are being researched for the most common names first.
No related spellings pass our data threshold.
Rare spellings summarised here: Tiarnan (26).
Numbers are all-time US births. Links come from Wikidata’s “said to be the same as” (P460, CC0) and our spelling rule: at most two letters different, with the same sound pattern.
No nicknames listed for Tiernan in the open dataset we use.
Source: carltonnorthern/nicknames (Apache-2.0).
Births and national rank for each year SSA lists the name, newest first.
| Year | Girls | Girls rank | Boys | Boys rank |
|---|---|---|---|---|
| 2025 | — | — | 29 | #3,840 |
| 2024 | — | — | 26 | #4,185 |
| 2023 | — | — | 35 | #3,408 |
| 2022 | — | — | 38 | #3,207 |
| 2021 | — | — | 32 | #3,573 |
| 2020 | — | — | 20 | #4,843 |
| 2019 | — | — | 24 | #4,320 |
| 2018 | 5 | #17,922 | 28 | #3,876 |
| 2017 | 5 | #18,223 | 26 | #4,096 |
| 2016 | 5 | #18,645 | 36 | #3,220 |
| 2015 | 5 | #18,881 | 46 | #2,678 |
| 2014 | 5 | #18,989 | 49 | #2,540 |
| 2013 | 5 | #19,063 | 53 | #2,397 |
| 2012 | 5 | #19,312 | 56 | #2,320 |
| 2011 | 7 | #14,724 | 73 | #1,923 |
| 2010 | 5 | #19,606 | 73 | #1,937 |
| 2009 | 10 | #11,396 | 85 | #1,787 |
| 2008 | 12 | #10,032 | 78 | #1,872 |
| 2007 | 5 | #20,327 | 86 | #1,738 |
| 2006 | 11 | #10,559 | 67 | #2,008 |
| 2005 | 10 | #10,863 | 69 | #1,866 |
| 2004 | 11 | #9,845 | 68 | #1,832 |
| 2003 | 13 | #8,456 | 62 | #1,904 |
| 2002 | 19 | #6,114 | 55 | #2,016 |
| 2001 | 17 | #6,597 | 49 | #2,145 |
| 2000 | 11 | #9,127 | 41 | #2,371 |
| 1999 | 9 | #10,282 | 39 | #2,339 |
| 1998 | — | — | 35 | #2,501 |
| 1997 | — | — | 18 | #3,865 |
| 1996 | — | — | 17 | #4,002 |
| 1995 | 5 | #15,585 | 16 | #4,033 |
| 1994 | — | — | 7 | #7,691 |
| 1993 | 5 | #15,625 | 12 | #4,965 |
| 1992 | — | — | 10 | #5,607 |
| 1991 | 5 | #15,274 | 8 | #6,461 |
| 1989 | 5 | #14,393 | 5 | #9,109 |
| 1988 | — | — | 5 | #8,396 |
| 1985 | — | — | 5 | #7,497 |
About the data: counts are Social Security card applications for US births, for names given to at least five babies of a sex in a year (SSA, names.zip, public domain). Ranks follow SSA’s own order: most births first, ties alphabetical. Files retrieved 2026-10-05 (checksum on our sources page).