The name reached its all-time peak in 2019 with 48 births ranking #3301. FALLING Recent data shows the name is currently falling.
Kairo is a modern spelling of Cairo used as a given name. Its sense is essentially place-based, pointing back to the city name rather than to an older personal-name meaning.
Behind the Name treats Kairo as a modern English variant of Cairo. It fits the wider trend of turning place names into first names, with the altered spelling giving it a sharper contemporary feel.