Justus vs Karl

Baby Name Comparison — 2026

Justus

Boy #1,814 Most Popular 2 Syllables

Meaning

"just, righteous, upright"

Origin: Latin

Cultural Roots

German Dutch English Christian

Quick Stats

Popularity Rank
#1,814
Total SSA Count
90
Syllables
2
Formality
Formal
Nicknames
Jus, Just

Playground Safety Score

✓ All Clear
Full profile for Justus →

Karl

Boy #1,684 Most Popular 1 Syllable

Meaning

"free man, strong man"

Origin: Old High German

Cultural Roots

German Scandinavian Austrian Swedish Norwegian

Quick Stats

Popularity Rank
#1,684
Total SSA Count
99
Syllables
1
Formality
Formal

Playground Safety Score

✓ All Clear
Full profile for Karl →

Popularity Comparison

Justus Rank #1,814
Karl Rank #1,684

Karl is more popular, ranked #1684 vs #1814 for Justus.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Justus ___

  • Justus Paul
  • Justus Luke
  • Justus Michael
  • Justus David
  • Justus Emmanuel
  • Justus Heinrich

Karl ___

  • Karl Friedrich
  • Karl Heinrich
  • Karl Magnus
  • Karl Erik
  • Karl Gunnar
  • Karl Lars

Sibling Name Ideas

Names that pair well as siblings.

If you choose Justus

Felix Augustin Theodora Perpetua Cornelius

If you choose Karl

Hans Brigitte Ingrid Heinz Erika

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 Justus or Karl more popular?

Karl is more popular, ranked #1684 compared to Justus at #1814 in the United States.

What do Justus and Karl mean?

Justus means "just, righteous, upright" (Latin origin). Karl means "free man, strong man" (Old High German origin).

Are Justus and Karl boy or girl names?

Justus is primarily a boy name. Karl is primarily a boy name.

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← Full profile: Justus ← Full profile: Karl Browse all baby names