Dillion vs Theodore

Baby Name Comparison — 2026

Dillion

Boy #5,680 Most Popular 3 Syllables

Meaning

"faithful, loyal"

Origin: Old Irish Dallán

Cultural Roots

Irish Welsh American English

Quick Stats

Popularity Rank
#5,680
Total SSA Count
17
Syllables
3
Formality
Moderate
Nicknames
Dil, Dilly

Playground Safety Score

✓ All Clear
Full profile for Dillion →

Popularity Comparison

Dillion Rank #5,680
Theodore Rank #4

Theodore is more popular, ranked #4 vs #5680 for Dillion.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Dillion ___

  • Dillion James
  • Dillion Patrick
  • Dillion Michael
  • Dillion Thomas
  • Dillion Robert
  • Dillion Connor

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 Dillion

Finn Declan Connor Siobhan Maeve

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 Dillion or Theodore more popular?

Theodore is more popular, ranked #4 compared to Dillion at #5680 in the United States.

What do Dillion and Theodore mean?

Dillion means "faithful, loyal" (Old Irish Dallán origin). Theodore means "divine gift" (Greek origin).

Are Dillion and Theodore boy or girl names?

Dillion is primarily a boy name. Theodore is primarily a boy name.

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