Castiel
How to say it: KASS-tee-el · /ˈkæstiɛl/
Likely a modern coinage blending angelic name elements; popularized by the TV series Supernatural.
Castiel was the 915th most popular boys’ name in the United States in 2025, given to 224 babies (Social Security Administration). The 2020s are its busiest decade so far, its births are down about 19% in ten years, and it is projected to slip to #1,005 by 2030.
Updated · SSA 2025 data, published May 2026 · Insee 2025 data, published July 2026 · How we compute these figures
Key facts
| Rank among boys’ names, 2025 | #915 |
|---|---|
| Babies born in 2025 | 224 |
| Share of births | 1 in 14,800 |
| Peak decade | 2020s |
| Change over 10 years | −19% |
| Projected rank for 2030 (estimate) | #1,005 |
| In France, 2025 | #1,110 among boys’ names, 20 births |
Sources: Social Security Administration (SSA), Insee (France). How we compute these figures.
Its life, decade by decade
Almost all of Castiel's use has come in recent decades. Its high point arrived in the 2020s, with a dip likely ahead.
What goes with it
Crisp consonants mix with breathy air over three syllables, giving a creative and strong impression. Cas shares its style nicely with Caspian.
In the classroom
In a class of 25 children born in 2025, the chance that another child is called Castiel is about under 1 in 200.
Around the world
This spelling is used in English, French, Hebrew, Spanish.
In France: #1,110 for boys in 2025.
Good to know
- Castiel, angel played by Misha Collins on Supernatural.
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