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© 2026 Namesake · namesake.baby

Data: Social Security Administration, US births 1880–2024

Castiel — Meaning, Origin & Popularity | Namesake
All names
Castian|Castin
Literary◈ Unisex · 58% boy · 42% girl↑↑ Surging

◈= unisex (gender-neutral)

Castiel

◈

KAS-tee-el · 3 syllables

Share Castiel:
Compare with another name
Boy
#816
↑↑ Surging
Boy
#816
Popularity score: 32
↑↑ Surging
Peak
#811 in 2021
5yr
+110 ranks
Velocity
+110
Birth frequency
8.5 per 100,000 births
Girl

Outside top 1000

Last ranked #15584 in 2020

Peak: #15584 in 2020

→ Stable
5yr
—
Velocity
—
Birth frequency
1.4 per 1,000,000 births

Popularity Over Time

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

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.

BOY
Average0255075100Popularity score (0–100)20202024

Rank #816 · Rising since 2020

All US boy names
Top 200 boy names
Literary boy names
Castiel

Popularity score: 32  ·  SSA Rank: #816

GIRL
Average0255075100Popularity score (0–100)20152020

Rank #15584 · Rising since 2015

This name is given to very few babies each year — it sits outside the range shown in these charts.

Rare  ·  Distinctive  ·  Familiar  ·  Common  ·  Very Common

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

Namesake Score
94
Higher than 94% of names
Combines uniqueness, trend, meaning, feasibility, and search interest.
Trend
↑↑ Surging
+110 ranks
Based on SSA rank velocity
Feasibility
Limited
.com taken · — · clear
Low friction, available
Uniqueness
80
2 per 10,000 births
Won't be common in class
Name DNA
LiteraryCelestialUnisex3-syllableAngelicHebrew-rootedModern usageSpiritualContemporary
Character
divine protectionquiet strengthrighteous dutycelestial graceunwavering loyalty
STRONG
High confidence

Castiel is a Literary unisex name with upward momentum in SSA rankings. It ranked #816 in the US in 2024.

Trend:↑↑ Surging · +110 ranks
Feasibility:.com taken · — · clear
Popularity:#816 · rare
Castiel at a Glance
Meaning:God is my strength. A name from Jewish and Christian angelology, popularized in modern media as a powerful celestial being.
Language root:Hebrew · Medieval angelology
Peak rank:#811 in 2021
5yr change:+110 ranks
Sex usage:Boy #816 · Girl #—
Notable bearers

No notable bearers on record.

Similar Sound
Casper◈Cassian◈CastleCastianCassiel◈Azrael◈
Similar Style
UrielGabrielAzrael◈Caspian◈EzraSeraph
Works Well With
Sibling names that pair naturally with Castiel
Sariel◈ZadkielAuriel◈EvangelineSeraphineZion◈Eden◈Phoenix◈
You Might Also Like
Uriel
Hebrew · #461
↑ Rising
Gabriel
Hebrew · #43
→ Stable
Caspian◈
Persian · #578
↑ Rising
Ezra
Hebrew · #13
→ Stable
Seraph
Hebrew · —
→ Stable
Kylo
Literary · #373
↑ Rising
Source: Social Security Administration baby names data. Popularity data reflects US births. Feasibility data updated monthly.
Castiel illustration
Name Intelligence
Castiel · Overview
Summary

Castiel is a Literary unisex name with upward momentum in SSA rankings. It ranked #816 in the US in 2024.

Search interest: 1/100 → Stable

Strengths
Strong fundamentals
Castiel scores 94/100 on the Namesake scale — meaning, origin, and trend all contribute positively.
Surging fast
Rank has moved 110 positions in the last year. Exceptional momentum.
Works for any sex
58% boy · 42% girl. A genuinely unisex name is rare at this level of distinctiveness.
Celestial · Mythological · Modern character
Castiel carries a bold, ethereal, cool quality that makes it distinctive without being invented.
Considerations
Rising very fast
Castiel is surging. If the trend continues, it may become significantly more common within 2-3 years.
Domain taken
castiel.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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