Rheo
- Gender
- Boy
- Say it
- REE-oh
- Origin
- Modern
- UK rank, 2025
- #4,301 for boys
Rheo is a boys' name of Modern origin. In 2025 it ranked 4,301st for boys in the UK (4 babies).
Where does Rheo come from?
Modern: modern coinage, perhaps a variant of Rio or a blend with Theo
Is Rheo a girl's or a boy's name?
Rheo is a boys' name. In 2025, it was given to 4 boys in the UK. Too few girls were given it to be listed.
How popular is Rheo in the UK?
- Rank in 2025
- #4,301among boys
- Babies in 2025
- 4about 1 in 75,000 boys
- Five-year trend
- Fallingdown 30% in five years
- Same name in a class
- under 1%chance among 15 boys
In 2025, 4 boys in the UK were named Rheo, making it the 4,301st most popular name for boys. Five years earlier, in 2020, it was 3,502nd. Its busiest year was 2018, with 11 boys.
Half of all the boys named Rheo in the UK since 1996 were born between 2013 and 2022, the years shaded on the chart below.
In 2025, 360 boys in the UK were given Rheo or a name that sounds the same. With every name's spellings counted this way, that ranks #177, up from #4,301 for this spelling alone.
- Rio 356
- Rheo 4
Among boys in 2025, it was 4,212th in England and Wales.
Rheo in the UK, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 4 | #4,301 |
| 2024 | 3 | #5,198 |
| 2023 | 7 | #2,965 |
| 2022 | 6 | #3,219 |
| 2021 | 6 | #3,179 |
| 2020 | 5 | #3,502 |
| 2019 | 4 | #4,126 |
| 2018 | 11 | #2,088 |
| 2017 | 0 | – |
| 2016 | 5 | #3,655 |
| 2015 | 0 | – |
| 2014 | 4 | #4,063 |
| 2013 | 3 | #4,884 |
| 2012 | 5 | #3,572 |
| 2011 | 4 | #3,986 |
| 2010 | 3 | #4,865 |
| 2009 | 3 | #4,691 |
| 2008 | 0 | – |
| 2007 | 1 | #5,736 |
| 2006 | 0 | – |
| 2005 | 0 | – |
| 2004 | 0 | – |
| 2003 | 3 | #3,593 |
Names like Rheo
Names given in the same years and the same naming tradition, with a similar sound.
Kairo Theo Leo Yusuf Roman Reggie Reuben Ronnie Remy Arlo Rowan Hugo
Other spellings of Rheo
Names related to Rheo
More Modern names
Jayden Ailany Myla Kayden Nevaeh Jax Indie Miley Raelynn Kaiden Kehlani Alayna Caden Zayden Wrenley Mya
Sources
Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland) and Baby names (Northern Ireland Statistics and Research Agency). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.
To cite this page: Nameling, “Rheo: name meaning, origin and popularity”, https://www.nameling.co.uk/names/rheo, updated 20 October 2026.