Fredrick vs Thaddeus

Baby Name Comparison — 2026

Fredrick

Boy #1,656 Most Popular 2 Syllables

Meaning

"peaceful ruler"

Origin: Old High German

Cultural Roots

English American German Scandinavian

Quick Stats

Popularity Rank
#1,656
Total SSA Count
102
Syllables
2
Formality
Formal
Nicknames
Fred, Freddie, Rick

Playground Safety Score

8 High Risk

{:type=>:rhyme_pattern, :severity=>:low, :message=>"'Fredrick' ending sounds like 'sick/thick/dick'"}

Full profile for Fredrick →

Thaddeus

Boy #850 Most Popular 3 Syllables

Meaning

"courageous heart"

Origin: Aramaic

Cultural Roots

English Polish American Catholic

Quick Stats

Popularity Rank
#850
Total SSA Count
284
Syllables
3
Formality
Formal
Nicknames
Thad, Tad, Taddy

Playground Safety Score

✓ All Clear
Full profile for Thaddeus →

Popularity Comparison

Fredrick Rank #1,656
Thaddeus Rank #850

Thaddeus is more popular, ranked #850 vs #1656 for Fredrick.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Fredrick ___

  • Fredrick James
  • Fredrick John
  • Fredrick Henry
  • Fredrick William
  • Fredrick Thomas
  • Fredrick Charles

Thaddeus ___

  • Thaddeus James
  • Thaddeus William
  • Thaddeus John
  • Thaddeus August
  • Thaddeus Cole
  • Thaddeus Lee

Sibling Name Ideas

Names that pair well as siblings.

If you choose Fredrick

Eleanor Beatrice Henry Edmund Clara

If you choose Thaddeus

Augustus Sebastian Cornelius Edmund Beatrice

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 Fredrick or Thaddeus more popular?

Thaddeus is more popular, ranked #850 compared to Fredrick at #1656 in the United States.

What do Fredrick and Thaddeus mean?

Fredrick means "peaceful ruler" (Old High German origin). Thaddeus means "courageous heart" (Aramaic origin).

Are Fredrick and Thaddeus boy or girl names?

Fredrick is primarily a boy name. Thaddeus is primarily a boy name.

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← Full profile: Fredrick ← Full profile: Thaddeus Browse all baby names