Gender
Origin
- Celtic/Gaelic
- Conflict
- Celtic
- Irish
- Strife or battle; Saint Killian was an Irish saint who brought Christianity and literacy to Germany in the fifth century.
- Latin
Syllables
3
Alternate Spellings and Variants of Killian
Pronunciation
k(il)-lian
Popularity in the USA
- Boys: peak in 2017 (rank #248, 1,505 births); most recent 2025 (rank #417, 770 births)
- Girls: peak in 1997 (rank #3448, 33 births); most recent 2025 (rank #7133, 15 births)
| Year | Boys | Girls |
|---|---|---|
| 2025 | 770 | 15 |
| 2024 | 884 | 12 |
| 2023 | 884 | 12 |
| 2022 | 902 | 20 |
| 2021 | 939 | 21 |
| 2020 | 899 | 13 |
| 2019 | 1,089 | 16 |
| 2018 | 1,229 | 21 |
| 2017 | 1,505 | 22 |
| 2016 | 1,382 | 19 |
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 2022 (rank #493, 79 births); most recent 2025 (rank #628, 59 births)
| Year | Boys |
|---|---|
| 2025 | 59 |
| 2024 | 59 |
| 2023 | 66 |
| 2022 | 79 |
| 2021 | 66 |
| 2020 | 56 |
| 2019 | 72 |
| 2018 | 76 |
| 2017 | 57 |
| 2016 | 48 |
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 2002 (rank #43, 1,929 births); most recent 2023 (rank #2735, 8 births)
| Year | Boys |
|---|---|
| 2023 | 8 |
| 2022 | 19 |
| 2021 | 25 |
| 2020 | 28 |
| 2019 | 50 |
| 2018 | 58 |
| 2017 | 85 |
| 2016 | 114 |
| 2015 | 156 |
| 2014 | 158 |
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 2008 (rank #65, 132 births); most recent 2025 (rank #140, 38 births)
| Year | Boys |
|---|---|
| 2025 | 38 |
| 2024 | 37 |
| 2023 | 35 |
| 2022 | 36 |
| 2021 | 58 |
| 2020 | 52 |
| 2019 | 62 |
| 2018 | 64 |
| 2017 | 62 |
| 2016 | 83 |
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 #249, 16 births); most recent 2025 (rank #441, 7 births)
| Year | Boys |
|---|---|
| 2025 | 7 |
| 2024 | 15 |
| 2023 | 10 |
| 2022 | 11 |
| 2021 | 11 |
| 2020 | 16 |
| 2019 | 8 |
| 2018 | 15 |
| 2017 | 9 |
| 2016 | 8 |
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 2017 (rank #157, 17 births); most recent 2025 (rank #175, 12 births)
| Year | Boys |
|---|---|
| 2025 | 12 |
| 2024 | 11 |
| 2023 | 7 |
| 2022 | 11 |
| 2021 | 7 |
| 2020 | 14 |
| 2019 | 14 |
| 2018 | 9 |
| 2017 | 17 |
| 2016 | 9 |
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 2017 (rank #228, 19 births); most recent 2023 (rank #354, 9 births)
| Year | Boys |
|---|---|
| 2023 | 9 |
| 2022 | – |
| 2021 | 6 |
| 2020 | 10 |
| 2019 | 11 |
| 2018 | – |
| 2017 | 19 |
| 2016 | 9 |
| 2015 | 6 |
| 2014 | 5 |
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