Boy Name · Latin Origin
Rex
Last reviewed: June 2026
Rex — a boy name from the Latin tradition — is distinctive but not obscure. Its meaning, "King", anchors the name in something deeper than sound alone. If Reco is on your shortlist, Rex belongs in the same conversation.
Names like Rex
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.
How do you pronounce Rex?
Rex has 3 letters and is most commonly stressed on the first syllable.
Is Rex a boy's or girl's name?
Rex is primarily used as a boy's name in US records.
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.