Castiel vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Castiel Rank #817
Theodore Rank #4

Theodore is more popular, ranked #4 vs #817 for Castiel.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Castiel ___

  • Castiel James
  • Castiel Alexander
  • Castiel Michael
  • Castiel Dean
  • Castiel Luke
  • Castiel Noah

Theodore ___

  • Theodore James
  • Theodore William
  • Theodore Alexander
  • Theodore John
  • Theodore Henry
  • Theodore Arthur

Sibling Name Ideas

Names that pair well as siblings.

If you choose Castiel

Gabriel Raphael Seraphina Ariel Elijah

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

Which Name Fits Your Family?

Answer 3 quick questions and we'll help you decide.

1. Which style feels more like your family?

Frequently Asked Questions

Is Castiel or Theodore more popular?

Theodore is more popular, ranked #4 compared to Castiel at #817 in the United States.

What do Castiel and Theodore mean?

Castiel means "speed of God" (Hebrew origin). Theodore means "divine gift" (Greek origin).

Are Castiel and Theodore boy or girl names?

Castiel is primarily a boy name. Theodore is primarily a boy name.

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← Full profile: Castiel ← Full profile: Theodore Browse all baby names