Frederick vs Sullivan

Baby Name Comparison — 2026

Frederick

Boy #424 Most Popular 3 Syllables

"peaceful ruler"

Origin: Germanic

English German Scandinavian French American

8 High Risk

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

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Frederick Rank #424

Sullivan Rank #340

Sullivan is more popular, ranked #340 vs #424 for Frederick.

Is Frederick or Sullivan more popular?

Sullivan is more popular, ranked #340 compared to Frederick at #424 in the United States.

What do Frederick and Sullivan mean?

Frederick means "peaceful ruler" (Germanic origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Frederick and Sullivan boy or girl names?

Frederick is primarily a boy name. Sullivan is primarily a boy name.