Rex vs Dereck

Baby Name Comparison — 2026

Rex

Boy #793 Most Popular 1 Syllable

"king"

Origin: Latin

English Latin American

✓ All Clear

Boy #665 Most Popular 2 Syllables

"ruler of the people"

Origin: Germanic/Old Dutch

English American Dutch

✓ All Clear

Rex Rank #793

Dereck Rank #665

Dereck is more popular, ranked #665 vs #793 for Rex.

Is Rex or Dereck more popular?

Dereck is more popular, ranked #665 compared to Rex at #793 in the United States.

What do Rex and Dereck mean?

Rex means "king" (Latin origin). Dereck means "ruler of the people" (Germanic/Old Dutch origin).

Are Rex and Dereck boy or girl names?

Rex is primarily a boy name. Dereck is primarily a boy name.