Holding steady, #5,399 for boys today.
Popularity of Castle since 1916
Babies named Castle per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 1910s | 10 |
| 1920s | 7 |
| 1930s | 5 |
| 1940s | 0 |
| 1950s | 0 |
| 1960s | 5 |
| 1970s | 0 |
| 1980s | 0 |
| 1990s | 10 |
| 2000s | 29 |
| 2010s | 197 |
| 2020s | 122 |
Meaning & origin
Castle is a rare word name that appeared on the U.S. naming record as early as 1916 but has never achieved widespread use. It reached its peak popularity in 2018, though even then it remained very uncommon. As of 2025, Castle ranks 5399 and is given to roughly 1 in every 100,475 boys. The name has been used in the 2010s with a stable trajectory, suggesting occasional but consistent use as a distinctive choice. Like many word names, Castle conveys a sense of strength and history, appealing to parents seeking a name with architectural or medieval connotations. Its rarity ensures it stands out, but it remains a niche option.
Castle is an English word name derived from the Old Norman French 'castel' and Latin 'castellum', meaning 'fort' or 'fortified settlement'. As a given name, it is a rare modern usage, likely inspired by surname usage or the word itself, and has never been common. It saw a slight increase in the 2010s, possibly influenced by popular culture, but remains extremely uncommon.
Sibling names for Castle
Names that share Castle's style, for a brother or sister.

