Seiichi vs Theodore

Baby Name Comparison — 2026

Seiichi

Boy #20,134 Most Popular

Quick Stats

Popularity Rank: #20,134
Total SSA Count: 6
Nicknames: Sei, Seii, Seiiy

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Similar Names

Flemon Elo Day Lagrand

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Theodore

Boy #4 Most Popular 3 Syllables

Meaning

"divine gift"

Origin: Greek

Cultural Roots

English French Greek

Quick Stats

Popularity Rank: #4
Total SSA Count: 12,011
Syllables: 3
Formality: Formal
Nicknames: Theo, Teddy, Ted

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Similar Names

Jeremiah Jasper Andrew Luke

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Popularity Comparison

Seiichi Rank #20,134

Theodore Rank #4

Theodore is more popular, ranked #4 vs #20134 for Seiichi.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Seiichi ___

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 Seiichi

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 Seiichi or Theodore more popular?

Theodore is more popular, ranked #4 compared to Seiichi at #20134 in the United States.

What do Seiichi and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Seiichi and Theodore boy or girl names?

Seiichi is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

Theodore vs Seiichi Seiichi vs Flemon Seiichi vs Elo Seiichi vs Day Seiichi vs Lagrand

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