Seiko vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Seiko Rank #32,215
Theodore Rank #4

Theodore is more popular, ranked #4 vs #32215 for Seiko.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Seiko ___

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 Seiko

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 Seiko or Theodore more popular?

Theodore is more popular, ranked #4 compared to Seiko at #32215 in the United States.

What do Seiko and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Seiko and Theodore boy or girl names?

Seiko is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

Theodore vs Seiko Seiko vs Lyla Seiko vs Demeter Seiko vs Madysen Seiko vs Elvia
← Full profile: Seiko ← Full profile: Theodore Browse all baby names