Kaio
Boy · KY-oh · Latin
Kaio is a boys' name of Latin origin. In 2025 it ranked 1,964th for boys in the UK (13 babies) and 4,538th for boys in the US (22 babies).
What does Kaio mean?
Latin: spelling of Caio, the Portuguese form of Gaius
A spelling of Caio, the Portuguese form of the Roman name Gaius, borne by Gaius Julius Caesar.
- Say it
- KY-oh
Is Kaio a girl's or a boy's name?
Kaio is a boys' name. In 2025, it was given to 13 boys in the UK and 22 boys in the US. Too few girls were given it to be listed.
How popular is Kaio in the UK?
- Rank in 2025
- #1,964among boys
- Babies in 2025
- 13about 1 in 23,000 boys
- Five-year trend
- Rising fastup 131% in five years
- Same name in a class
- under 1%chance among 15 boys
In 2025, 13 boys in the UK were named Kaio, making it the 1,964th most popular name for boys. Five years earlier, in 2020, it was 2,819th.
It has been given to more boys each year for the last 4 years. 2025 had the most boys named Kaio of any year since it first appeared, in 2010.
Half of all the boys named Kaio in the UK since 1996 were born between 2016 and 2024, the years shaded on the chart below.
In 2025, 53 boys in the UK were given Kaio or a name that sounds the same. With every name's spellings counted this way, that ranks #655, up from #1,964 for this spelling alone.
Among boys in 2025, it was 1,894th in England and Wales.
Kaio in the UK, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 13 | #1,964 |
| 2024 | 10 | #2,328 |
| 2023 | 7 | #2,965 |
| 2022 | 6 | #3,219 |
| 2021 | 5 | #3,614 |
| 2020 | 7 | #2,819 |
| 2019 | 0 | – |
| 2018 | 6 | #3,162 |
| 2017 | 6 | #3,191 |
| 2016 | 7 | #2,947 |
| 2015 | 4 | #4,086 |
| 2014 | 0 | – |
| 2013 | 0 | – |
| 2012 | 3 | #4,999 |
| 2011 | 1 | #6,218 |
| 2010 | 6 | #3,092 |
How popular is Kaio in the US?
- Rank in 2025
- #4,538among boys
- Babies in 2025
- 22about 1 in 78,000 boys
- Five-year trend
- Risingup 32% in five years
- Same name in a class
- under 1%chance among 15 boys
In 2025, 22 boys in the US were named Kaio, making it the 4,538th most popular name for boys. Five years earlier, in 2020, it was 5,037th. Its busiest year was 2023, with 26 boys. It first appears in the records in 1993.
Half of all the boys named Kaio in the US since 1880 were born between 2008 and 2021, the years shaded on the chart below.
In 2025, 68 boys in the US were given Kaio or a name that sounds the same. With every name's spellings counted this way, that ranks #1,850, up from #4,538 for this spelling alone.
Kaio in the US, year by year
| Year | Boys | Rank |
|---|---|---|
| 2025 | 22 | #4,538 |
| 2024 | 26 | #4,069 |
| 2023 | 26 | #4,109 |
| 2022 | 17 | #5,441 |
| 2021 | 19 | #4,932 |
| 2020 | 18 | #5,037 |
| 2019 | 18 | #5,149 |
| 2018 | 20 | #4,735 |
| 2017 | 13 | #6,334 |
| 2016 | 15 | #5,785 |
| 2015 | 9 | #8,035 |
| 2014 | 19 | #4,862 |
| 2013 | 21 | #4,461 |
| 2012 | 16 | #5,476 |
| 2011 | 15 | #5,670 |
| 2010 | 21 | #4,516 |
| 2009 | 22 | #4,427 |
| 2008 | 23 | #4,264 |
| 2007 | 13 | #6,259 |
| 2006 | 11 | #6,899 |
| 2005 | 14 | #5,572 |
| 2004 | 8 | #8,137 |
| 2003 | 11 | #6,251 |
| 2002 | 8 | #7,636 |
| 2001 | 5 | #10,548 |
| 2000 | 0 | – |
| 1999 | 0 | – |
| 1998 | 5 | #9,623 |
| 1997 | 0 | – |
| 1996 | 9 | #5,975 |
| 1995 | 0 | – |
| 1994 | 0 | – |
| 1993 | 5 | #8,693 |
Names like Kaio
Names given in the same years and the same naming tradition, with a similar sound.
Koa Kairo Kai Kenzo Yusuf Loki Remy Yunus Ruairi Kaito Ozzy Taio
Other spellings of Kaio
Names related to Kaio
More Latin names
Oliver Olivia Leo Roman Aurora Emily Florence Mabel Luna Nora Rosie Emilia Max Nova Lucy Julian