Koi vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Koi Rank #2,684
Theodore Rank #4

Theodore is more popular, ranked #4 vs #2684 for Koi.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Koi ___

  • Koi River
  • Koi Blue
  • Koi James
  • Koi Lee
  • Koi Finn
  • Koi Reef

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 Koi

Kai Reef Cove Marina River

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 Koi or Theodore more popular?

Theodore is more popular, ranked #4 compared to Koi at #2684 in the United States.

What do Koi and Theodore mean?

Koi means "love, romantic feeling" (Japanese origin). Theodore means "divine gift" (Greek origin).

Are Koi and Theodore boy or girl names?

Koi is primarily a boy name. Theodore is primarily a boy name.

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