Rees
Meaningardor, enthusiasm · Welsh form of Rhys
- US rank
- #6,143
- Syllables
- 1
- Peak
- #2,050 in 1939
14 babies were named Rees in the US in 2025. It has climbed 1,924 places in five years.
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US births per million boys, 1914–2025
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Rees you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 121,951 baby boys born in the US in 2025 was named Rees, 14 babies in all. In a typical school of 500 kids, your Rees would very likely be the only one.
- HistoryRees first shows up in US birth records in 1914, the first year at least 5 babies got it. It has been in use for 111 years since.
- Best yearIts best year was 1939, when it reached #2,050.
- Then vs nowRees was 2.2× more common in 2000 than it is today. In 2000 it was given to about 1 in 54,645 baby boys; in 2025, about 1 in 121,951.
- TrendRees has climbed 1,924 places in the US rankings over the last five years and now sits at #6,143. Fast risers like this often keep climbing, so expect to hear it more.
- MeaningRees is a Welsh form of Rhys, which means “ardor, enthusiasm”.
About the name Rees
Rees is a boy name of Welsh origin meaning “ardor, enthusiasm”. It has 4 letters and 1 syllable, starting with R and ending in “-ees”. US birth records list Rees for boys from 1914 to 2025, in 82 of those 112 years. Its best year was 1939, when it ranked #2,050 among boy names. In 2025 it ranked #6,143, with 14 babies.
Origin:Welsh names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1910s | 5.7 | 176,471 boys |
| 1920s | 3.6 | 280,112 boys |
| 1930s | 3.2 | 310,559 boys |
| 1940s | 3.7 | 267,380 boys |
| 1950s | 1.8 | 552,486 boys |
| 1960s | 2.4 | 409,836 boys |
| 1970s | 1.1 | 934,579 boys |
| 1980s | 3.1 | 323,625 boys |
| 1990s | 9.5 | 105,374 boys |
| 2000s | 14 | 69,444 boys |
| 2010s | 9.0 | 111,483 boys |
| 2020s | 5.8 | 172,911 boys |
More Welsh boy names
- Unisex name: Owen · well-born
- Unisex name: Dylan · great tide
- Unisex name: Rowan · little red-haired one
- Boy name: Arthur · possibly bear
- Unisex name: Kai · sea
- Boy name: Bryson · son of Brice
- Boy name: Evan · God is gracious
- Unisex name: Maddox · son of Madoc
Questions about the name Rees
What does the name Rees mean?
Rees means “ardor, enthusiasm” in Welsh, as a form of Rhys.
What is the origin of the name Rees?
Rees has Welsh roots in our records. Other Welsh names include Owen, Dylan, Rowan.
Is Rees a boy or girl name?
Rees is a boy name.
How popular is the name Rees?
Rees ranked #6,143 for US boys in 2025, given to 14 babies. Its best year was 1939 (#2,050).