Kaio

A boys’ name with no widely documented etymology — two syllables, given to 13 babies a year in England and Wales.

Babies a year
13
England and Wales, 2025
Rarity
Very rare
among names in use
US popularity
—
outside the top 1000
UK popularity
#1897
13 babies

Kaio by the numbers

In 2025, 13 babies in England and Wales were named Kaio. In the US, 13 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 23 babies in 2008, making it a 2000s name.

What we can tell you about Kaio

Not every name has a meaning to trace. Plenty are coined rather than inherited — invented outright, blended from two names, or respelled from an older one — and where we cannot find an etymology we can stand behind, we would rather say so than make one up. What follows comes from the birth records themselves.

Spelled almost the same

Other names in the records within a letter or two of Kaio. Close spellings are not always related names, but they are usually worth seeing together.

  • Kaisea672 in England and Wales (2025)
  • Kainspear; a variant spelling of Kane or Cain167 in the US (2017)
  • Kaislion; fierce21 in England and Wales (2025)
  • Kaeoof the earth18 in the US (2017)
  • Kaidleader or guide; a form of Caid4 in England and Wales (2025)
  • Kailothe sea; form of Kaila8 in England and Wales (2025)

Sounds like Kaio

Names that are said the same way as Kaio, however they are written. Sounding alike does not mean they share a history.

  • Caiorejoice; from Gaius36 in England and Wales (2025)
  • Kayorespectful; a form of Kayō4 in England and Wales (2025)
  • Cayokey or small island5 in the US (2017)

Names about as common as Kaio

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