Koichi vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Koichi Rank #38,165
Theodore Rank #4

Theodore is more popular, ranked #4 vs #38165 for Koichi.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Koichi ___

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 Koichi

No sibling data available yet.

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 Koichi or Theodore more popular?

Theodore is more popular, ranked #4 compared to Koichi at #38165 in the United States.

What do Koichi and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Koichi and Theodore boy or girl names?

Koichi is primarily a boy name. Theodore is primarily a boy name.

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