boy's name
Rheo
RAY-oh (English)
- Gender Boy
- Syllables 2
- Letters 4
- Popularity Uncommon
- Births on record 84
Rheo is a boy's name with 2 syllables. In 2021 it was given to 6 babies in the United States. It is used consistently but remains uncommon.
- Peaked in England and Wales in 2018, when 9 babies were given the name.
- It has been rising over the past decade in England and Wales.
- Today about 1 in 131,735 babies in England and Wales is given this name.
- First appears in birth records in 2003.
- 2 syllables, with the stress on syllable 1.
Rheo Over Time
Births per decade in England and Wales, 2000s to 2020s. The striped bar is the 2020s, which so far covers 2020 to 2025.
Show the numbers
| Decade | Births |
|---|---|
| 2000s | 9 |
| 2010s | 37 |
| 2020s (to 2025) | 27 |
How Popular Is Rheo?
In 2025, Rheo was given to 4 babies in England and Wales. It is used consistently but remains uncommon.
Where Rheo Is Used
Figures for England and Wales leave out any name given to fewer than three babies in a year, so a gap means the name fell below that floor rather than went unused. Data & sources.
Names That Peaked Alongside Rheo
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents Who Like Rheo Also Like
Names whose popularity has risen and fallen in step with Rheo over the last century — the same taste, a different name.
How to Say Rheo
- English RAY-oh
Sibling Names for Rheo
Names from the same era that do not rhyme or share an initial with Rheo — the two things that make a sibling set grate.
Common Questions About Rheo
How popular is the name Rheo?
In 2025, Rheo was given to 4 babies in England and Wales. It is used consistently but remains uncommon.
Is Rheo a girl's or a boy's name?
Rheo is given almost entirely to boys in birth records.
How many syllables are in Rheo?
Rheo has 2 syllables.
When was Rheo most popular?
Rheo peaked in 2018, when 9 babies were given the name. It has been rising over the past decade.
Is Rheo a good name?
That is not something records can settle, but they can tell you what you would be choosing. Rheo currently ranks #4,835 in England and Wales. It has been rising over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.