Leto vs Thaddaeus

Baby Name Comparison — 2026

Leto

Boy #5,815 Most Popular 2 Syllables

Meaning

"the hidden one, lady"

Origin: Pre-Greek/Lycian

Cultural Roots

Greek American French

Quick Stats

Popularity Rank
#5,815
Total SSA Count
16
Syllables
2
Formality
Moderate
Nicknames
Lee

Playground Safety Score

✓ All Clear
Full profile for Leto →

Popularity Comparison

Leto Rank #5,815
Thaddaeus Rank #5,721

Thaddaeus is more popular, ranked #5721 vs #5815 for Leto.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Leto ___

  • Leto James
  • Leto Alexander
  • Leto River
  • Leto August
  • Leto Felix
  • Leto Orion

Thaddaeus ___

  • Thaddaeus James
  • Thaddaeus William
  • Thaddaeus John
  • Thaddaeus Michael
  • Thaddaeus Joseph
  • Thaddaeus Henry

Sibling Name Ideas

Names that pair well as siblings.

If you choose Leto

Apollo Artemis Castor Phoebe Orion

If you choose Thaddaeus

Barnabas Cornelius Sebastian Bartholomew Philippa

Which Name Fits Your Family?

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Frequently Asked Questions

Is Leto or Thaddaeus more popular?

Thaddaeus is more popular, ranked #5721 compared to Leto at #5815 in the United States.

What do Leto and Thaddaeus mean?

Leto means "the hidden one, lady" (Pre-Greek/Lycian origin). Thaddaeus means "heart, courageous heart" (Aramaic origin).

Are Leto and Thaddaeus boy or girl names?

Leto is primarily a boy name. Thaddaeus is primarily a boy name.

More Comparisons

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← Full profile: Leto ← Full profile: Thaddaeus Browse all baby names