Sir vs Justus

Baby Name Comparison — 2026

Sir

Boy #1,964 Most Popular 1 Syllable

"lord, master"

Origin: Old French

American English Caribbean

✓ All Clear

Boy #1,814 Most Popular 2 Syllables

"just, righteous, upright"

Origin: Latin

German Dutch English Christian

✓ All Clear

Sir Rank #1,964

Justus Rank #1,814

Justus is more popular, ranked #1814 vs #1964 for Sir.

Is Sir or Justus more popular?

Justus is more popular, ranked #1814 compared to Sir at #1964 in the United States.

What do Sir and Justus mean?

Sir means "lord, master" (Old French origin). Justus means "just, righteous, upright" (Latin origin).

Are Sir and Justus boy or girl names?

Sir is primarily a boy name. Justus is primarily a boy name.