Worldwide, バイイ (Bally 
, バイイ) is quite a rare mostly boy's, but seldom girly first name. The first name バイイ is characteristic of Guernsey, where it is quite a common female name, Hong Kong, where it is quite a rare epicene name, and the Democratic Republic of the Congo, where it is a rare masculine name. Not in comparison with a country's population, it most frequently occurs in the Democratic Republic of the Congo, India, and Nigeria. Also, バイイ is the last name as well as the forename.