All over the world, カイロ (Cairo 
, カイロ 
) is quite a rare primarily masculine, but very infrequently feminine given name. The forename カイロ is habitual in Nicaragua, where it is quite a rare male name, Bahamas, and Egypt, where it is quite a rare largely boy's, but uncommonly female name. Measured by absolute frequency, it is commonest in Brazil, Egypt, and Nicaragua. More frequently, カイロ is the last name as well as the forename.