Rhett vs Sullivan

Baby Name Comparison — 2026

Rhett

Boy #174 Most Popular 1 Syllable

"advice, counsel"

Origin: Welsh/Dutch

American Southern US

✓ All Clear

Boy #340 Most Popular 3 Syllables

"descendant of the dark one"

Origin: Irish Gaelic

Irish American English

✓ All Clear

Rhett Rank #174

Sullivan Rank #340

Rhett is more popular, ranked #174 vs #340 for Sullivan.

Is Rhett or Sullivan more popular?

Rhett is more popular, ranked #174 compared to Sullivan at #340 in the United States.

What do Rhett and Sullivan mean?

Rhett means "advice, counsel" (Welsh/Dutch origin). Sullivan means "descendant of the dark one" (Irish Gaelic origin).

Are Rhett and Sullivan boy or girl names?

Rhett is primarily a boy name. Sullivan is primarily a boy name.