Rex
Rex is a boys' name of Latin origin meaning “King.” It ranked #859 in the United States in 2025. Directly from the Latin word for king, Rex was popularized as a given name in the English-speaking world in the late…
how do you pronounce Rex?
RECKS
Hear it spoken aloud with our AI pronunciation tool.
what does Rex mean?
The name Rex means “King.” It comes from the Latin language tradition.
Directly from the Latin word for king, Rex was popularized as a given name in the English-speaking world in the late 19th century. It has a bold, punchy, vintage charm reminiscent of golden-era Hollywood.
where does the name Rex come from?
Wikipedia describes Rex as a male given name, used either on its own or as a short form of Rexford or Reginald, derived from the Latin rex, meaning king — the etymological root for 'king' across several languages.
the history of Rex
No further historical timeline, including a specific popularization date, is given in the source, so none is added here.
how popular is this name?
| Year | Rank |
|---|---|
| 2025 | #859 |
| 2024 | #787 |
| 2023 | #722 |
| 2022 | #697 |
| 2021 | #698 |
| 2020 | #683 |
Source: SSA National Baby Names Dataset
who are famous people named Rex?
- Rex Harrison
- Rex Orange County
- Rex Tillerson
what names are similar to Rex?
what names go well with Rex?
Sibling names that share Rex's rhythm and register without echoing it too closely.
Last reviewed April 30, 2026 · Curated by HushName editorial
love Rex? get 10 more names curated for your family.
Popularity rankings and meanings are just the starting point. Our AI consultant finds names that match your heritage, style, and what matters most to you.
Completely free. No credit card required.
start free consultation