At a glance
- U.S. rank 2025
- #5,399 of boy names (outside the top 1,000)
- Babies in 2025
- 17 (<0.01% of boys)
- Trend
- Slipping #4,141 in 2020 to #5,399 in 2025
- Peak
- #3,446 in 2018
- First recorded
- 1916
Meaning of Castle
Castle traces its lineage to the Old French castel and the Latin castellum, a linguistic foundation as solid as the fortified walls it evokes, and today unfolds with quiet confidence on American birth charts—25 boys were named Castle in 2024, placing it at 899 in popularity after oscillating modestly between ranks 880 and 926 over the past decade. Pronounced KAH-səl in Britain and KAS-əl in the United States, the name carries the architectural poetry of ramparts and keeps, suggesting both steadfast protection and noble bearing. Its rarity bestows an understated distinction—a personal bastion of character—while its literal meaning invites parents to build upon a heritage of strength without losing sight of warmth and approachability. And though dry-eyed observers might wryly suggest that Castle simply betrays a parental fondness for stonework, the name’s true charm lies in its balance of historical gravitas and contemporary flair, offering a fortress of inspiration for each boy who bears it.
How to pronounce Castle
American English
- Pronounced KAS-uhl /ˈkæsəl/
British English
- Pronounced KAH-suhl /ˈkɑːsəl/
Popularity of Castle in the U.S.
Castle was the #5,399 boy name in the U.S. in 2025, with 17 babies. It peaked at #3,446 in 2018. It first appears in the records in 1916.
- Rank among U.S. boy names (right scale, #1 at the top)
Year-by-year table, 1916–2025 28 rows
| Year | Babies | Rank | vs previous year |
|---|---|---|---|
| 2025 | 17 | 5,399 | ▼ 1,199 |
| 2024 | 25 | 4,200 | ▲ 2,317 |
| 2023 | 13 | 6,517 | ▼ 1,072 |
| 2022 | 17 | 5,445 | ▼ 1,434 |
| 2021 | 26 | 4,011 | ▲ 130 |
| 2020 | 24 | 4,141 | ▲ 810 |
| 2019 | 19 | 4,951 | ▼ 1,505 |
| 2018 | 32 | 3,446 | ▲ 659 |
| 2017 | 25 | 4,105 | ▲ 1,684 |
| 2016 | 15 | 5,789 | ▼ 1,907 |
| 2015 | 27 | 3,882 | ▲ 1,603 |
| 2014 | 16 | 5,485 | ▲ 1,118 |
| 2013 | 12 | 6,603 | ▼ 1,741 |
| 2012 | 19 | 4,862 | ▲ 338 |
| 2011 | 17 | 5,200 | ▲ 541 |
| 2010 | 15 | 5,741 | back (not recorded in 2008–2009) |
| 2007 | 5 | 12,369 | ▼ 314 |
| 2006 | 5 | 12,055 | ▼ 2,940 |
| 2005 | 7 | 9,115 | back (not recorded in 2004) |
| 2003 | 6 | 9,581 | back (not recorded in 2001–2002) |
| 2000 | 6 | 9,112 | ▲ 800 |
| 1999 | 5 | 9,912 | ▼ 281 |
| 1998 | 5 | 9,631 | back (not recorded in 1965–1997) |
| 1964 | 5 | 4,039 | back (not recorded in 1934–1963) |
| 1933 | 5 | 3,642 | back (not recorded in 1921–1932) |
| 1920 | 7 | 3,489 | ▲ 679 |
| 1919 | 5 | 4,168 | back (not recorded in 1917–1918) |
| 1916 | 5 | 3,897 | new |