Rex
Rex is a boys' name of Latin origin meaning “King.” It ranked #298 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.
how popular is this name?
| Year | Rank |
|---|---|
| 2024 | #298 |
| 2023 | #318 |
| 2022 | #338 |
| 2021 | #362 |
| 2020 | #394 |
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?
Last reviewed April 30, 2026 · Curated by HushName editorial
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