Lionel vs Theodore

Baby Name Comparison — 2026

Lionel

Boy #561 Most Popular 3 Syllables

Meaning

"young lion"

Origin: Latin

Cultural Roots

English French Spanish Italian

Quick Stats

Popularity Rank
#561
Total SSA Count
528
Syllables
3
Formality
Formal
Nicknames
Leo, Lion, Nell

Playground Safety Score

✓ All Clear
Full profile for Lionel →

Popularity Comparison

Lionel Rank #561
Theodore Rank #4

Theodore is more popular, ranked #4 vs #561 for Lionel.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Lionel ___

  • Lionel James
  • Lionel Hugh
  • Lionel Edward
  • Lionel Charles
  • Lionel Thomas
  • Lionel William

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 Lionel

Eleanor Clara Arthur Edmund Vivian

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 Lionel or Theodore more popular?

Theodore is more popular, ranked #4 compared to Lionel at #561 in the United States.

What do Lionel and Theodore mean?

Lionel means "young lion" (Latin origin). Theodore means "divine gift" (Greek origin).

Are Lionel and Theodore boy or girl names?

Lionel is primarily a boy name. Theodore is primarily a boy name.

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