Poseidon vs Thaddaeus

Baby Name Comparison — 2026

Poseidon

Boy #5,724 Most Popular 3 Syllables

Meaning

"lord of the earth, husband of the earth"

Origin: Proto-Indo-European

Cultural Roots

Greek Modern Western Fantasy

Quick Stats

Popularity Rank
#5,724
Total SSA Count
16
Syllables
3
Formality
Moderate
Nicknames
Posy, Donnie, Don

Playground Safety Score

✓ All Clear
Full profile for Poseidon →

Popularity Comparison

Poseidon Rank #5,724
Thaddaeus Rank #5,721

Thaddaeus is more popular, ranked #5721 vs #5724 for Poseidon.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Poseidon ___

  • Poseidon Atlas
  • Poseidon James
  • Poseidon Alexander
  • Poseidon Cole
  • Poseidon Orion
  • Poseidon Magnus

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 Poseidon

Zeus Athena Apollo Artemis Hera

If you choose Thaddaeus

Barnabas Cornelius Sebastian Bartholomew Philippa

Which Name Fits Your Family?

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1. Which style feels more like your family?

Frequently Asked Questions

Is Poseidon or Thaddaeus more popular?

Thaddaeus is more popular, ranked #5721 compared to Poseidon at #5724 in the United States.

What do Poseidon and Thaddaeus mean?

Poseidon means "lord of the earth, husband of the earth" (Proto-Indo-European origin). Thaddaeus means "heart, courageous heart" (Aramaic origin).

Are Poseidon and Thaddaeus boy or girl names?

Poseidon is primarily a boy name. Thaddaeus is primarily a boy name.

More Comparisons

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