Gender
Origin
- Celtic/Gaelic
- Small: fierce.
Alternate Spellings and Variants of Kilian
Pronunciation
k(i)-lian
Popularity in the USA
- Boys: peak in 2023 (rank #1029, 212 births); most recent 2025 (rank #1166, 177 births)
- Girls: peak in 2019 (rank #13792, 6 births)
| Year | Boys | Girls |
|---|---|---|
| 2025 | 177 | – |
| 2024 | 209 | – |
| 2023 | 212 | – |
| 2022 | 161 | – |
| 2021 | 168 | – |
| 2020 | 153 | – |
| 2019 | 132 | 6 |
| 2018 | 145 | – |
| 2017 | 162 | – |
| 2016 | 161 | – |
Top girl names · Top boy names in the USA (2025)
Source: U.S. Social Security Administration (SSA), national baby names data (public domain). This site is not affiliated with or endorsed by the SSA. Data years: 1880 to 2025. Original data
Popularity in England and Wales
- Boys: peak in 2025 (rank #1228, 23 births)
| Year | Boys |
|---|---|
| 2025 | 23 |
| 2024 | 19 |
| 2023 | 20 |
| 2022 | 13 |
| 2021 | 22 |
| 2020 | 19 |
| 2019 | 14 |
| 2018 | 20 |
| 2017 | 8 |
| 2016 | 12 |
Top girl names · Top boy names in England and Wales (2025)
Source: Office for National Statistics (ONS), Baby names in England and Wales. Contains public sector information licensed under the Open Government Licence v3.0. Data years: 1996 to 2025. Original data · Licence
Popularity in France
- Boys: peak in 2005 (rank #97, 758 births); most recent 2023 (rank #1384, 23 births)
| Year | Boys |
|---|---|
| 2023 | 23 |
| 2022 | 31 |
| 2021 | 46 |
| 2020 | 44 |
| 2019 | 61 |
| 2018 | 76 |
| 2017 | 100 |
| 2016 | 104 |
| 2015 | 124 |
| 2014 | 183 |
Top girl names · Top boy names in France (2023)
Source: INSEE, Fichier des prénoms (last updated 8 July 2024), used under the Licence Ouverte / Open Licence 2.0. Changes: names are shown in title case, and spellings that differ only by accents are counted together. Data years: 1900 to 2023. Original data · Licence
Popularity in Ireland
- Boys: peak in 1989 (rank #184, 11 births); most recent 2025 (rank #787, 3 births)
| Year | Boys |
|---|---|
| 2025 | 3 |
| 2024 | – |
| 2023 | 3 |
| 2022 | 4 |
| 2021 | – |
| 2020 | – |
| 2019 | 3 |
| 2018 | 5 |
| 2017 | 5 |
| 2016 | – |
Top girl names · Top boy names in Ireland (2025)
Source: Central Statistics Office (CSO), Ireland, Irish Babies' Names (tables VSA50 and VSA60), licensed under CC BY 4.0. Changes: spellings that differ only by accents (for example Rian and Rían) are counted together. Data years: 1964 to 2025. Original data · Licence
Popularity in Scotland
- Boys: peak in 2020 (rank #476, 6 births); most recent 2022 (rank #703, 3 births)
| Year | Boys |
|---|---|
| 2025 | – |
| 2024 | – |
| 2023 | – |
| 2022 | 3 |
| 2021 | 4 |
| 2020 | 6 |
| 2019 | 6 |
| 2018 | – |
| 2017 | – |
| 2016 | – |
Top girl names · Top boy names in Scotland (2025)
Source: National Records of Scotland (NRS), Babies' First Names. © Crown copyright. Contains public sector information licensed under the Open Government Licence v3.0. Data years: 1974 to 2025. Original data · Licence
Popularity in Northern Ireland
- Boys: peak in 2018 (rank #416, 3 births)
| Year | Boys |
|---|---|
| 2025 | – |
| 2024 | – |
| 2023 | – |
| 2022 | – |
| 2021 | – |
| 2020 | – |
| 2019 | – |
| 2018 | 3 |
| 2017 | – |
| 2016 | – |
Top girl names · Top boy names in Northern Ireland (2025)
Source: Northern Ireland Statistics and Research Agency (NISRA), Baby Names. © Crown copyright. Contains public sector information licensed under the Open Government Licence v3.0. Data years: 1997 to 2025. Original data · Licence
Popularity in British Columbia (Canada)
- Boys: peak in 2020 (rank #598, 5 births)
| Year | Boys |
|---|---|
| 2023 | – |
| 2022 | – |
| 2021 | – |
| 2020 | 5 |
| 2019 | – |
| 2018 | – |
| 2017 | – |
| 2016 | – |
| 2015 | – |
| 2014 | – |
Top girl names · Top boy names in British Columbia (Canada) (2023)
Source: British Columbia Vital Statistics Agency, Most popular baby names for the past 100 years. Contains information licensed under the Open Government Licence – British Columbia. Changes: names are shown in title case. Data years: 1924 to 2023. Original data · Licence