Oisin vs Regan

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

Oisin Rank #4,145
Regan Rank #2,346

Regan is more popular, ranked #2346 vs #4145 for Oisin.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Oisin ___

  • Oisin Patrick
  • Oisin Brendan
  • Oisin Cormac
  • Oisin Finn
  • Oisin James
  • Oisin Liam

Regan ___

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

Sibling Name Ideas

Names that pair well as siblings.

If you choose Oisin

Finn Cormac Aoife Saoirse Brigid

If you choose Regan

Declan Fiona Connell Maeve Cian

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 Oisin or Regan more popular?

Regan is more popular, ranked #2346 compared to Oisin at #4145 in the United States.

What do Oisin and Regan mean?

Oisin means "little deer, fawn" (Old Irish origin). Regan means "little king, royal one" (Irish Gaelic origin).

Are Oisin and Regan boy or girl names?

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

More Comparisons

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← Full profile: Oisin ← Full profile: Regan Browse all baby names