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© 2026 Namesake · namesake.baby

Data: Social Security Administration, US births 1880–2024

Castle — Meaning, Origin & Popularity | Namesake
All names
Castin|Caston
EnglishBoy↑↑ Surging

Castle

KAS-ul · 2 syllables

Share Castle:
Compare with another name
Boy
#4201
↑↑ Surging
#4201
in the US · 2024
Popularity score: 16
Peak rank
#4032 in 2021
5yr change
+2400 ranks
Birth frequency
6.9 per 1,000,000 births
Sex split
100% boy · 0% girl

Popularity Over Time

↑ Higher on this chart = more popular · ↓ Lower = less popular

Average0255075100Popularity score (0–100)20202024

Rank #4201 · Falling since 2020

How Popular Is This Name?

Bars show the range of popularity for each group. The dot shows where this name sits. Further right = more popular.

All US boy names
Top 200 boy names
English boy names
Castle

Popularity score: 16  ·  SSA Rank: #4201

Rare  ·  Distinctive  ·  Familiar  ·  Common  ·  Very Common

Popularity score: 0 = least popular, 100 = most popular. Based on SSA rank.

Namesake Score
84
Higher than 84% of names
Combines uniqueness, trend, meaning, feasibility, and search interest.
Trend
↑↑ Surging
+2400 ranks
Based on SSA rank velocity
Feasibility
Limited
.com taken · — · clear
Low friction, available
Uniqueness
55
9 per 10,000 births
Won't be common in class
Name DNA
EnglishArchitectureStrong2-syllableModernRareSurname-as-firstnameFortressBoldPlace-inspired
Character
strong foundationprotective barriersteadfast presenceenduring legacycommanding authority
STRONG
High confidence

Castle is an English boy name with upward momentum in SSA rankings. It ranked #4201 in the US in 2024.

Trend:↑↑ Surging · +2400 ranks
Feasibility:.com taken · — · clear
Popularity:#4201 · very rare
Castle at a Glance
Meaning:A large fortified building or stronghold. Originally derived from the Norman French word for fortification.
Language root:Middle English · Old French
Peak rank:#4032 in 2021
5yr change:+2400 ranks
Sex usage:100% boy · 0% girl
Notable bearers

No notable bearers on record.

Similar Sound
Casper◈Cassian◈CastonCaspian◈Easton◈
Similar Style
Archer◈Everett◈Sterling◈ThorneAtlas◈
Works Well With
Sibling names that pair naturally with Castle
Archer◈Haven◈Everett◈ThorneValor◈Rowan◈Sage◈Emery◈
You Might Also Like
Archer◈
English · #115
→ Stable
Everett◈
English · #85
→ Stable
Sterling◈
English · #372
↑ Rising
Thorne
English · #8879
↑↑ Surging
Atlas◈
Greek · #101
→ Stable
Jack
English · #15
→ Stable
Source: Social Security Administration baby names data. Popularity data reflects US births. Feasibility data updated monthly.
Name Intelligence
Castle · Overview
Summary

Castle is an English boy name with upward momentum in SSA rankings. It ranked #4201 in the US in 2024.

Search interest: 83/100 ↑ Rising

Strengths
Strong fundamentals
Castle scores 84/100 on the Namesake scale — meaning, origin, and trend all contribute positively.
Surging fast
Rank has moved 2400 positions in the last year. Exceptional momentum.
Strong · Modern character
Castle carries a bold, grounded quality that makes it distinctive without being invented.
Considerations
Rising very fast
Castle is surging. If the trend continues, it may become significantly more common within 2-3 years.
Domain taken
castle.com is not available. Alternative TLDs may work.
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Data source:Social Security Administration
Coverage:US births 1879–2024
Updated:January 2025
ISR:Refreshes monthly
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