Calan vs Theodore

Baby Name Comparison — 2026

Calan

Boy #3,805 Most Popular 2 Syllables

Meaning

"first of the month, calends"

Origin: Latin via Welsh

Cultural Roots

Welsh Scottish Irish American

Quick Stats

Popularity Rank
#3,805
Total SSA Count
29
Syllables
2
Formality
Moderate
Nicknames
Cal

Playground Safety Score

✓ All Clear
Full profile for Calan →

Popularity Comparison

Calan Rank #3,805
Theodore Rank #4

Theodore is more popular, ranked #4 vs #3805 for Calan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Calan ___

  • Calan James
  • Calan John
  • Calan Reid
  • Calan Ross
  • Calan Finn
  • Calan Hugh

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 Calan

Rowan Isla Declan Fiona Rhys

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 Calan or Theodore more popular?

Theodore is more popular, ranked #4 compared to Calan at #3805 in the United States.

What do Calan and Theodore mean?

Calan means "first of the month, calends" (Latin via Welsh origin). Theodore means "divine gift" (Greek origin).

Are Calan and Theodore boy or girl names?

Calan is primarily a boy name. Theodore is primarily a boy name.

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