Gender
Male
Origin
- Greek
- myth name (brother of Helen)
Alternate Spellings and Variants of Castor
Pronunciation
c(a)-stor, cas-tor
Popularity in the USA
- Boys: peak in 2016 (rank #3681, 29 births); most recent 2025 (rank #4707, 21 births)
| Year | Boys |
|---|---|
| 2025 | 21 |
| 2024 | 12 |
| 2023 | 11 |
| 2022 | 17 |
| 2021 | 17 |
| 2020 | 25 |
| 2019 | 23 |
| 2018 | 24 |
| 2017 | 14 |
| 2016 | 29 |
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 #3447, 5 births)
| Year | Boys |
|---|---|
| 2025 | – |
| 2024 | – |
| 2023 | – |
| 2022 | 5 |
| 2021 | – |
| 2020 | – |
| 2019 | – |
| 2018 | – |
| 2017 | 3 |
| 2016 | – |
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