Foster vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Foster Rank #1,077
Theodore Rank #4

Theodore is more popular, ranked #4 vs #1077 for Foster.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Foster ___

  • Foster James
  • Foster Lee
  • Foster Grey
  • Foster Cole
  • Foster Reed
  • Foster Blue

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 Foster

Hunter Fletcher Archer Sawyer Harper

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 Foster or Theodore more popular?

Theodore is more popular, ranked #4 compared to Foster at #1077 in the United States.

What do Foster and Theodore mean?

Foster means "forest keeper, forester" (Old English origin). Theodore means "divine gift" (Greek origin).

Are Foster and Theodore boy or girl names?

Foster is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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