Cassio
A boys’ name with no widely documented etymology — three syllables, given to 3 babies a year in England and Wales.
Babies a year
3
England and Wales, 2025
Rarity
Very rare
among names in use
US popularity
—
outside the top 1000
UK popularity
#5137
3 babies
Cassio by the numbers
In 2025, 3 babies in England and Wales were named Cassio.
What we can tell you about Cassio
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 Cassio. Close spellings are not always related names, but they are usually worth seeing together.
- Cassidycurly haired; surname used as given name1,064 in the US (2017)
- Cassiushollow; vain140 in England and Wales (2025)
- Cassianhollow; of the Cassius family158 in England and Wales (2025)
- Cassielmy cover is God; an archangel in Jewish tradition49 in the US (2017)
- Casiehearkening or feminine form of Casey14 in the US (2017)
- Castin18 in the US (2017)
Names about as common as Cassio
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