Search names
Tiernan
OriginIrish
Meaning"little lord"
GenderBoy & girl
US rank · boys#3840
2025 SSA
US rank · girlsUnranked
Below 5 births
About Tiernan
Tiernan is the slightly edgier and sharper cousin of Kiernan. This is one Irish surname that is attractive but distinctive; Tierney is another, related, option.
Tiernan for boys#3840 US
Tiernan was a popular name in early and medieval Ireland and was borne by several kings and saints. It is currently high on the list in Northern Ireland.
Tiernan for girls
An old Irish surname cousin of Tierney that makes an unusual and appealing Irish gender switch.
Pronounced TEER-nun.
As of October 2026, Tiernan ranked #3840 in US births in 2025 SSA, peaked at #1738 in 2007.
Popularity & trends
US popularity — history
US rank, lower is more popular · SSA data 2014–2025
Actual · SSA
20142025
18802025
Data table
| Year | US rank | Births | Per million |
|---|---|---|---|
| 2014 | #2,540 | 49 | 25.5 |
| 2015 | #2,677 | 46 | 24 |
| 2016 | #3,220 | 36 | 19 |
| 2017 | #4,095 | 26 | 14 |
| 2018 | #3,876 | 28 | 15.4 |
| 2019 | #4,319 | 24 | 13.4 |
| 2020 | #4,839 | 20 | 11.6 |
| 2021 | #3,570 | 32 | 18.3 |
| 2022 | #3,205 | 38 | 21.8 |
| 2023 | #3,404 | 35 | 20.5 |
| 2024 | #4,166 | 26 | 15.1 |
| 2025 | #3,840 | 29 | 17 |
Similar names
These 40 names were selected by our users looking for other names like Tiernan.
Similar boy names
Similar girl names
Tiernan on lists
Famous Tiernans
- Tiernan O'Rourke (Tigernan Ua Ruairc)Boy
12th century Irish king of Breifne
- Tiernan O'HalloranBoy
Irish rugby player
Variations & nicknames
Save Tiernan
Save as boy name
Save as girl name