Boy Name · Latin Origin
Rex
Last reviewed: June 2026
Here is what we know about Rex: it is a boy name meaning "King", with Latin roots, and it lands in the Top 1000 band of US popularity for 2026. Names like Reco share its phonetic family.
Names like Rex
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Frequently asked about Rex
What does the name Rex mean?
Rex means "King" and is of Latin origin.
What is the origin of Rex?
Rex originates in Latin naming tradition. Names of Latin origin often share recognizable sounds and cultural roots that shape how the name reads today.
How do you pronounce Rex?
Rex has 3 letters and is most commonly stressed on the first syllable. Tap the pronunciation player on this page to hear it spoken aloud.
Is Rex a boy's or girl's name?
Rex is primarily used as a boy's name in US records, though usage can vary by region and era.
How popular is Rex in 2026?
In our 2026 popularity tracker, Rex sits in the Top 1000 tier — distinctive but not obscure.
What names are similar to Rex?
Names that share Rex's sound and style include Reco, Reza, Rees, Ric, Raj. Open the "Names like Rex" rail on this page for the full list.