Rees vs Ruairi

Baby Name Comparison — 2026

Rees

Boy #6,353 Most Popular 1 Syllable

Meaning

"enthusiasm, ardor, passion"

Origin: Old Welsh

Cultural Roots

Welsh English British

Quick Stats

Popularity Rank
#6,353
Total SSA Count
14
Syllables
1
Formality
Moderate

Playground Safety Score

✓ All Clear
Full profile for Rees →

Ruairi

Boy #6,527 Most Popular 3 Syllables

Meaning

"red king"

Origin: Old Irish ruadh (red) + ri (king)

Cultural Roots

Irish Scottish British

Quick Stats

Popularity Rank
#6,527
Total SSA Count
13
Syllables
3
Formality
Moderate
Nicknames
Ru, Rue, Rua

Playground Safety Score

✓ All Clear
Full profile for Ruairi →

Popularity Comparison

Rees Rank #6,353
Ruairi Rank #6,527

Rees is more popular, ranked #6353 vs #6527 for Ruairi.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Rees ___

  • Rees James
  • Rees Thomas
  • Rees William
  • Rees Owen
  • Rees Arthur
  • Rees Morgan

Ruairi ___

  • Ruairi James
  • Ruairi Cian
  • Ruairi Finn
  • Ruairi Patrick
  • Ruairi Sean
  • Ruairi Declan

Sibling Name Ideas

Names that pair well as siblings.

If you choose Rees

Griffith Owen Emrys Seren Bronwen

If you choose Ruairi

Ciaran Siobhan Aoife Fionn Niamh

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 Rees or Ruairi more popular?

Rees is more popular, ranked #6353 compared to Ruairi at #6527 in the United States.

What do Rees and Ruairi mean?

Rees means "enthusiasm, ardor, passion" (Old Welsh origin). Ruairi means "red king" (Old Irish ruadh (red) + ri (king) origin).

Are Rees and Ruairi boy or girl names?

Rees is primarily a boy name. Ruairi is primarily a boy name.

More Comparisons

Ruairi vs Rees Rees vs Norbert Rees vs Raynor Rees vs Tej Rees vs Amarey
← Full profile: Rees ← Full profile: Ruairi Browse all baby names