Ruaridh vs Theodore

Baby Name Comparison — 2026

Ruaridh

Boy #36,696 Most Popular 2 Syllables

Meaning

"red king, red-haired ruler"

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

Cultural Roots

Scottish Irish Gaelic Scottish Highland

Quick Stats

Popularity Rank
#36,696
Total SSA Count
5
Syllables
2
Formality
Moderate
Nicknames
Rory, Rua

Playground Safety Score

✓ All Clear
Full profile for Ruaridh →

Popularity Comparison

Ruaridh Rank #36,696
Theodore Rank #4

Theodore is more popular, ranked #4 vs #36696 for Ruaridh.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Ruaridh ___

  • Ruaridh James
  • Ruaridh Hamish
  • Ruaridh Alasdair
  • Ruaridh Malcolm
  • Ruaridh Fergus

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 Ruaridh

Hamish Alasdair Catriona Fionnuala Eilidh

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 Ruaridh or Theodore more popular?

Theodore is more popular, ranked #4 compared to Ruaridh at #36696 in the United States.

What do Ruaridh and Theodore mean?

Ruaridh means "red king, red-haired ruler" (Old Irish ruadh (red) + rí (king) origin). Theodore means "divine gift" (Greek origin).

Are Ruaridh and Theodore boy or girl names?

Ruaridh is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

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