Gender
Origin
- Celtic/Gaelic
- Irish Saint
- Irish
- Full of goodness; Saint Declan founded a monastery in Ardmore, County Waterford and is believed to have preached in Ireland before the arrival of Saint Patrick.
Syllables
2
Pronunciation
d(e)-clan, dec-lan
Popularity in the USA
- Boys: peak in 2019 (rank #95, 3,971 births); most recent 2025 (rank #139, 2,570 births)
- Girls: peak in 2021 (rank #3732, 40 births); most recent 2025 (rank #6546, 17 births)
| Year | Boys | Girls |
|---|---|---|
| 2025 | 2,570 | 17 |
| 2024 | 2,758 | 14 |
| 2023 | 2,814 | 30 |
| 2022 | 3,344 | 30 |
| 2021 | 3,646 | 40 |
| 2020 | 3,601 | 31 |
| 2019 | 3,971 | 36 |
| 2018 | 3,812 | 30 |
| 2017 | 3,469 | 40 |
| 2016 | 3,622 | 28 |
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 1997 (rank #69, 942 births); most recent 2025 (rank #372, 112 births)
| Year | Boys |
|---|---|
| 2025 | 112 |
| 2024 | 116 |
| 2023 | 104 |
| 2022 | 111 |
| 2021 | 112 |
| 2020 | 118 |
| 2019 | 111 |
| 2018 | 107 |
| 2017 | 159 |
| 2016 | 169 |
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 2006 (rank #1157, 26 births); most recent 2023 (rank #4813, 3 births)
| Year | Boys |
|---|---|
| 2023 | 3 |
| 2022 | 3 |
| 2021 | 13 |
| 2020 | 10 |
| 2019 | 7 |
| 2018 | 9 |
| 2017 | 7 |
| 2016 | 9 |
| 2015 | 12 |
| 2014 | 18 |
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 1971 (rank #12, 574 births); most recent 2025 (rank #336, 11 births)
| Year | Boys |
|---|---|
| 2025 | 11 |
| 2024 | 10 |
| 2023 | 8 |
| 2022 | 13 |
| 2021 | 14 |
| 2020 | 6 |
| 2019 | 10 |
| 2018 | 11 |
| 2017 | 7 |
| 2016 | 20 |
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 1997 (rank #32, 284 births); most recent 2025 (rank #278, 13 births)
| Year | Boys |
|---|---|
| 2025 | 13 |
| 2024 | 8 |
| 2023 | 14 |
| 2022 | 14 |
| 2021 | 14 |
| 2020 | 21 |
| 2019 | 24 |
| 2018 | 22 |
| 2017 | 21 |
| 2016 | 31 |
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 1997 (rank #54, 58 births); most recent 2025 (rank #270, 6 births)
| Year | Boys |
|---|---|
| 2025 | 6 |
| 2024 | 7 |
| 2023 | 6 |
| 2022 | 8 |
| 2021 | 5 |
| 2020 | 9 |
| 2019 | 10 |
| 2018 | 5 |
| 2017 | 14 |
| 2016 | 13 |
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 2014 (rank #49, 79 births); most recent 2023 (rank #82, 40 births)
| Year | Boys |
|---|---|
| 2023 | 40 |
| 2022 | 43 |
| 2021 | 54 |
| 2020 | 55 |
| 2019 | 47 |
| 2018 | 51 |
| 2017 | 51 |
| 2016 | 53 |
| 2015 | 77 |
| 2014 | 79 |
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