Killis vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Killis Rank #26,462
Theodore Rank #4

Theodore is more popular, ranked #4 vs #26462 for Killis.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Killis ___

No pairings available yet.

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 Killis

No sibling data available yet.

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 Killis or Theodore more popular?

Theodore is more popular, ranked #4 compared to Killis at #26462 in the United States.

What do Killis and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Killis and Theodore boy or girl names?

Killis is primarily a boy name. Theodore is primarily a boy name.

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