Gender
Origin
- Welsh
- son of the sea
Pronunciation
d(yl)-lan
Popularity in the USA
- Boys: peak in 1999 (rank #834, 181 births); most recent 2025 (rank #7194, 11 births)
- Girls: peak in 2010 (rank #4016, 37 births); most recent 2025 (rank #11932, 7 births)
| Year | Boys | Girls |
|---|---|---|
| 2025 | 11 | 7 |
| 2024 | 12 | 6 |
| 2023 | 24 | 6 |
| 2022 | 17 | 8 |
| 2021 | 26 | 11 |
| 2020 | 25 | 7 |
| 2019 | 25 | 8 |
| 2018 | 21 | 11 |
| 2017 | 43 | 14 |
| 2016 | 57 | 17 |
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 2008 (rank #1157, 21 births); most recent 2019 (rank #4694, 3 births)
| Year | Boys |
|---|---|
| 2025 | – |
| 2024 | – |
| 2023 | – |
| 2022 | – |
| 2021 | – |
| 2020 | – |
| 2019 | 3 |
| 2018 | 4 |
| 2017 | 3 |
| 2016 | 10 |
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 2008 (rank #2104, 11 births); most recent 2022 (rank #5010, 3 births)
| Year | Boys |
|---|---|
| 2023 | – |
| 2022 | 3 |
| 2021 | – |
| 2020 | – |
| 2019 | – |
| 2018 | 3 |
| 2017 | 4 |
| 2016 | – |
| 2015 | 4 |
| 2014 | – |
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 Scotland
- Boys: peak in 2005 (rank #400, 5 births)
| Year | Boys |
|---|---|
| 2025 | – |
| 2024 | – |
| 2023 | – |
| 2022 | – |
| 2021 | – |
| 2020 | – |
| 2019 | – |
| 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 British Columbia (Canada)
- Boys: peak in 1993 (rank #354, 8 births); most recent 1998 (rank #428, 6 births)
| Year | Boys |
|---|---|
| 2023 | – |
| 2022 | – |
| 2021 | – |
| 2020 | – |
| 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