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Home › Baby Names Directory › Castiel

Castiel

♂ Boy

Pronounced kas-tee-EL /ˌkæs.tiˈɛl/High

Meaning: My cover is God; shield of God; from Hebrew kasah (to cover, protect) + El (God); a name popularized by the TV series SupernaturalMedium

In 30 seconds: A name meaning 'shield of God' from Hebrew roots, popularized as the name of the angel Castiel in the TV series Supernatural (2005–2020). Before that show, the name had minimal use in U.S. birth records.
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Origin MediumHebrew
MeaningMy cover is God; shield of God; from Hebrew kasah (to cover, protect) + El (God); a name popularized by the TV series Supernatural
U.S. rank (2025)#1009 ↘ Falling
2025 U.S. births224 boys (0.01% of U.S. boys)
Peak year2019
Total births (all-time)≈ 3,884

Popularity in the U.S. · SSA data

peak 201920092025

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Castiel is believed to be formed from Hebrew kasah (to cover, protect) and El (God), meaning 'my shield is God' or 'God covers me.' The name does not appear in traditional Jewish or Christian biblical texts and its exact origin is uncertain — it gained its primary exposure through the TV series Supernatural.

Castiel appeared in U.S. birth data primarily after the debut of the Supernatural character in 2008. It ranked #816 for boys in 2024.

Did you know? The angel Castiel on Supernatural, played by Misha Collins, became one of the series' most beloved characters — and his character's complexity, loyalty, and pivotal story arc made the name Castiel surge on U.S. baby-name charts from around 2010.
Overall data confidence 72%
U.S. Social Security Administration — popularity data

Variations

KasthielCasteal

Nicknames

CasCass

Famous Bearers

  • ★Castiel (Supernatural) (fictional)
    An angel character on the TV series Supernatural (2008–2020), played by Misha Collins. His character arc made him one of the show's most popular figures.

If you like Castiel…

Gabriel— archangel name with the same El suffix and angelic tradition
Raphael— archangel name with the same -el ending and heavenly feel
Uriel— archangel name in the same -el angelological tradition
Michael— archangel name from the same Hebrew -el tradition
Azrael— angel of death name with the same -el suffix

Explore names like Castiel

By themehebrewthree-syllableangelictelevision
By meaningGod / DivineProtector

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Frequently Asked

What does the name Castiel mean?

Castiel means 'shield of God' or 'my cover is God,' from Hebrew kasah (to cover) and El (God). It was popularized by the TV series Supernatural.

How do you pronounce Castiel?

It's said kas-tee-EL — three syllables, stress on the third.

Is Castiel a boy or girl name?

Castiel is used primarily as a boys' name.

How popular is Castiel?

Castiel ranked #816 for U.S. boys in 2024.

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