In the entire world, Каиро (Cairo 
, Каиро 
) is quite a rare predominantly masculine, but very infrequently feminine first name. The first name Каиро is characteristic of Nicaragua, where it is quite a rare male name, Bahamas, and Egypt, where it is quite a rare dominantly male, but uncommonly girly name. In absolute terms, it is commonest in Brazil, Egypt, and Nicaragua. More prevalently, Каиро is the last name as well as the forename.