Katelyn vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Katelyn Rank #934
Theodore Rank #4

Theodore is more popular, ranked #4 vs #934 for Katelyn.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Katelyn ___

  • Katelyn Marie
  • Katelyn Anne
  • Katelyn Grace
  • Katelyn Rose
  • Katelyn Elizabeth
  • Katelyn Nicole

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 Katelyn

Brittany Ashley Emily Tyler Ryan

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 Katelyn or Theodore more popular?

Theodore is more popular, ranked #4 compared to Katelyn at #934 in the United States.

What do Katelyn and Theodore mean?

Katelyn means "pure" (Greek origin). Theodore means "divine gift" (Greek origin).

Are Katelyn and Theodore boy or girl names?

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

More Comparisons

Theodore vs Katelyn Katelyn vs Celina Katelyn vs Saanvi Katelyn vs Kya Katelyn vs Lizbeth
← Full profile: Katelyn ← Full profile: Theodore Browse all baby names