Kyllian vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Kyllian Rank #3,281
Theodore Rank #4

Theodore is more popular, ranked #4 vs #3281 for Kyllian.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kyllian ___

  • Kyllian James
  • Kyllian Patrick
  • Kyllian Finn
  • Kyllian Liam
  • Kyllian Sean
  • Kyllian Thomas

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 Kyllian

Declan Ronan Saoirse Fionnuala Cormac

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Kyllian or Theodore more popular?

Theodore is more popular, ranked #4 compared to Kyllian at #3281 in the United States.

What do Kyllian and Theodore mean?

Kyllian means "war, strife" (Old Irish origin). Theodore means "divine gift" (Greek origin).

Are Kyllian and Theodore boy or girl names?

Kyllian is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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