Rex
A boys’ name of Latin origin, meaning king.
How Rex has moved
View as table
| Year | US rank |
|---|---|
| 2015 | #680 |
| 2016 | #634 |
| 2017 | #607 |
| 2018 | #631 |
| 2019 | #653 |
| 2020 | #680 |
| 2021 | #698 |
| 2022 | #698 |
| 2023 | #722 |
| 2024 | #794 |
| 2025 | #859 |
Rex by the numbers
In 2025, 217 babies in England and Wales were named Rex. In the US, 428 were, though that figure is from 2017, the most recent full year we hold.
For the size of the two countries, it is given several times more often in England and Wales than in the US.
Its American peak was 1,503 babies in 1951, making it a 1950s name.
At its height, in 1955, about 1 in 1,500 American boys born that year was called Rex.
Spelled almost the same
Other names in the records within a letter or two of Rex. Close spellings are not always related names, but they are usually worth seeing together.
- Reyking; a form of Reyes377 in the US (2017)
- Renbenevolence; lotus93 in England and Wales (2025)
- Reispirit or soul; also a Portuguese coin62 in the US (2017)
- Redred-haired or ruddy complexion10 in the US (2017)
- Roxrock; diminutive of Roxana7 in England and Wales (2025)
- Regadvice ruler; diminutive of Reginald4 in England and Wales (2025)
Sounds like Rex
Names that are said the same way as Rex, however they are written. Sounding alike does not mean they share a history.
- Rexx5 in the US (2017)
Other names that mean a king or ruler
Like Rex, each of these has a king or ruler in its meaning. Different names, different histories, the same idea.
- Henryruler of the home2,295 in England and Wales (2025)
- Averyruler of the elves10,365 in the US (2017)
- Ryanlittle king; descendent of rian8,422 in the US (2017)
- Aubreyelf ruler; noble strength6,029 in the US (2017)
- Arthurbear; the legendary king3,211 in England and Wales (2025)
- Reaganlittle king3,211 in the US (2017)