Cathy vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Cathy Rank #6,151
Theodore Rank #4

Theodore is more popular, ranked #4 vs #6151 for Cathy.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Cathy ___

  • Cathy Ann
  • Cathy Marie
  • Cathy Jane
  • Cathy Louise
  • Cathy Lynn

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 Cathy

Patty Judy Linda Bobby Danny

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 Cathy or Theodore more popular?

Theodore is more popular, ranked #4 compared to Cathy at #6151 in the United States.

What do Cathy and Theodore mean?

Cathy means "pure" (Greek katharos origin). Theodore means "divine gift" (Greek origin).

Are Cathy and Theodore boy or girl names?

Cathy is primarily a girl name. Theodore is primarily a boy name.

More Comparisons

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