Sullivan vs Peter

Baby Name Comparison — 2026

Sullivan

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Boy #192 Most Popular 2 Syllables

"rock, stone"

Origin: Greek

English Greek Dutch Scandinavian German

12 High Risk

{:type=>:nickname, :severity=>:medium, :message=>"'Peter' can be twisted to 'peter'"}

Sullivan Rank #340

Peter Rank #192

Peter is more popular, ranked #192 vs #340 for Sullivan.

Is Sullivan or Peter more popular?

Peter is more popular, ranked #192 compared to Sullivan at #340 in the United States.

What do Sullivan and Peter mean?

Sullivan means "descendant of the dark one" (Irish Gaelic origin). Peter means "rock, stone" (Greek origin).

Are Sullivan and Peter boy or girl names?

Sullivan is primarily a boy name. Peter is primarily a boy name.