Frederick vs Rio

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 #517 Most Popular 2 Syllables

"river"

Origin: Spanish/Portuguese

Spanish Portuguese Brazilian American

✓ All Clear

Frederick Rank #424

Rio Rank #517

Frederick is more popular, ranked #424 vs #517 for Rio.

Is Frederick or Rio more popular?

Frederick is more popular, ranked #424 compared to Rio at #517 in the United States.

What do Frederick and Rio mean?

Frederick means "peaceful ruler" (Germanic origin). Rio means "river" (Spanish/Portuguese origin).

Are Frederick and Rio boy or girl names?

Frederick is primarily a boy name. Rio is primarily a boy name.