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Rex

Rex is a boy name with a classic feel, drawn from real birth records.

How common is Rex?

Recorded births named Rex by country

Country	Births on record
United States since 1880	60,590 births
England & Wales since 1996	3,846 births
Ireland since 1964	47 births

Counts come from national birth registrations: the U.S. Social Security Administration, England & Wales (ONS) and Ireland (CSO). Coverage spans differ, so totals aren't directly comparable across countries.

Rex's popularity over time

Babies named Rex per year — United States (1880–2025). United States peaked in 1952 (1,505/yr) · England & Wales peaked in 2020 (392/yr) · Ireland peaked in 2023 (6/yr).

When was Rex popular?

Rex reached its peak in 1952, when it was the #373 most popular baby name in the United States — making it a quintessential 1950s name.

Choosing Rex — together

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