Rian vs Theodore

Baby Name Comparison — 2026

Rian

Boy #1,263 Most Popular 2 Syllables

Meaning

"little king"

Origin: Irish Gaelic

Cultural Roots

Irish Celtic British

Quick Stats

Popularity Rank
#1,263
Total SSA Count
156
Syllables
2
Formality
Moderate

Playground Safety Score

✓ All Clear
Full profile for Rian →

Popularity Comparison

Rian Rank #1,263
Theodore Rank #4

Theodore is more popular, ranked #4 vs #1263 for Rian.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Rian ___

  • Rian James
  • Rian Patrick
  • Rian Michael
  • Rian Thomas
  • Rian Joseph
  • Rian John

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 Rian

Cian Aoife Niamh Finn Saoirse

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 Rian or Theodore more popular?

Theodore is more popular, ranked #4 compared to Rian at #1263 in the United States.

What do Rian and Theodore mean?

Rian means "little king" (Irish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Rian and Theodore boy or girl names?

Rian is primarily a boy name. Theodore is primarily a boy name.

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