Colin vs Theodore

Baby Name Comparison — 2026

Colin

Boy #335 Most Popular 2 Syllables

Meaning

"young dog, whelp"

Origin: Irish/Scottish Gaelic

Cultural Roots

English Irish Scottish American

Quick Stats

Popularity Rank
#335
Total SSA Count
1,035
Syllables
2
Formality
Moderate
Nicknames
Col

Playground Safety Score

✓ All Clear
Full profile for Colin →

Popularity Comparison

Colin Rank #335
Theodore Rank #4

Theodore is more popular, ranked #4 vs #335 for Colin.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Colin ___

  • Colin James
  • Colin Patrick
  • Colin Michael
  • Colin Andrew
  • Colin Lee

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 Colin

Declan Ronan Siobhan Bridget Aiden

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 Colin or Theodore more popular?

Theodore is more popular, ranked #4 compared to Colin at #335 in the United States.

What do Colin and Theodore mean?

Colin means "young dog, whelp" (Irish/Scottish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Colin and Theodore boy or girl names?

Colin is primarily a boy name. Theodore is primarily a boy name.

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