Castle
Fortified building
American origin · Boy name
97% boys3% girls
#6601US 2023
13Births / yr
Falling
286All-time births
📅 Since 191600
How to pronounce Castle
KAS·ul
/ˈkæs.əl/ · stress on KAS · 2 syllables
Fortified building
American origin · Boy name

What does Castle mean and where does it come from?

The name Castle has Anglo-Norman roots, stemming from the word 'castel', which means a fortified building or a stronghold. Originally used as a surname, it was adopted as a first name in the United States. As a surname, it is tied to rich historical estates and families. In contemporary settings, Ca

Cultural significance
Castle has been a cherished name across cultures, particularly in American-speaking communities, where it reflects values of fortified building.
Peak popularity
Reached #3440 in 2018 — currently #6601 in the US.
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Related Reading
American-origin baby names with timeless appeal
Browse names →

How else can you spell Castle?

Same sound, different look — useful if you want something slightly more distinctive

What middle names flow best with Castle?

Castle works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful

Castle Grace
Most popular combo · classic
Castle Rose
Floral · soft ending
Castle Mae
Sweet · timeless
Castle Claire
French influence · crisp
Castle Jane
Literary · strong
Castle Skye
Modern · airy feel
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Middle Names
The best middle names for Castle
Browse ideas →

How popular is Castle right now?

Falling — down 1129 spots — currently #6601 in the US out of 135.5k tracked names

US Trend 19202023#6601 · Top 4.9%
1920
2000
2005
2010
2015
2020
2021
2022
2023
YearUS RankBirthsvs Prior Year
2023#660113▼ down 1129 · -24% births
2022#547217▼ down 1440 · -35% births
2021#403226▲ up 81 · +8% births
2020#411324▼ down 219 · -11% births
2015#389427▲ up 2174 · +93% births
2010#606814▲ up 3152 · +100% births
2005#92207▲ up 42 · +17% births
2000#92626▼ down 5513 · -14% births
1920#37497

The story of Castle

Castle entered American naming records in 1916 and has been in use for over 108 years. With 286 total births recorded, Castle remains relatively uncommon. Once ranked #3749 in 1920, the name has become less common in recent years, sitting at #6601 in 2023.

Names that peaked alongside Castle in 2018:

Castle by decade

DecadeBirths
1910s10
1920s7
1930s5
1960s5
1990s10
2000s29
2010s196
2020s24
💎Castle has only 286 total recorded births since 1916 — rarer than 99% of names in our database.

What are good nicknames for Castle?

Common
CasCaAstle

Common questions about the name Castle

What does the name Castle mean?
Castle means "Fortified building" — a name rooted in American tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Castle?
Castle is currently a distinctive and less common name as a boy name in the US and is becoming rarer and more distinctive, making it a unique choice that stands out.
What is the cultural origin of Castle?
Castle originates from American tradition. American names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
How do you pronounce the name Castle?
Castle is a two-syllable name pronounced K AE1 S AH0 L. The pronunciation is straightforward for English speakers, and the name reads clearly on paper — an important practical consideration for parents.
Is Castle a common or rare name?
Castle is a distinctive choice that balances familiarity with individuality. It strikes a balance between standing out and fitting in.