Rex
Meaning
"king"
Origin: Latin
Cultural Roots
Quick Stats
- Popularity Rank
- #793
- Total SSA Count
- 316
- Syllables
- 1
- Formality
- Moderate
Baby Name Comparison — 2026
"king"
Origin: Latin
"large homestead, great settlement"
Origin: Welsh
Trevor is more popular, ranked #626 vs #793 for Rex.
Historical US popularity rank — lower number means more popular.
Historical trend data not available for this comparison.
Names that pair well as siblings.
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Trevor is more popular, ranked #626 compared to Rex at #793 in the United States.
Rex means "king" (Latin origin). Trevor means "large homestead, great settlement" (Welsh origin).
Rex is primarily a boy name. Trevor is primarily a boy name.