Regan vs Theodore

Baby Name Comparison — 2026

Regan

Girl #2,346 Most Popular 2 Syllables

Meaning

"little king, royal one"

Origin: Irish Gaelic

Cultural Roots

Irish American British

Quick Stats

Popularity Rank
#2,346
Total SSA Count
78
Syllables
2
Formality
Moderate
Nicknames
Rege, Rea

Playground Safety Score

✓ All Clear
Full profile for Regan →

Popularity Comparison

Regan Rank #2,346
Theodore Rank #4

Theodore is more popular, ranked #4 vs #2346 for Regan.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Regan ___

  • Regan Grace
  • Regan Claire
  • Regan Marie
  • Regan Jane
  • Regan Elizabeth
  • Regan Rose

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 Regan

Declan Fiona Connell Maeve Cian

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 Regan or Theodore more popular?

Theodore is more popular, ranked #4 compared to Regan at #2346 in the United States.

What do Regan and Theodore mean?

Regan means "little king, royal one" (Irish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Regan and Theodore boy or girl names?

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

More Comparisons

Theodore vs Regan Regan vs Josette Regan vs Nomi Regan vs Alex Regan vs Aiyla
← Full profile: Regan ← Full profile: Theodore Browse all baby names