Siem vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Siem Rank #34,883
Theodore Rank #4

Theodore is more popular, ranked #4 vs #34883 for Siem.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Siem ___

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 Siem

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 Siem or Theodore more popular?

Theodore is more popular, ranked #4 compared to Siem at #34883 in the United States.

What do Siem and Theodore mean?

Theodore means "divine gift" (Greek origin).

Are Siem and Theodore boy or girl names?

Siem is primarily a boy name. Theodore is primarily a boy name.

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