Throughout the world, Хоаи (Hoai 
, Khoai 
, Xoai 
) is quite a common epicene given name. The first name Хоаи is habitual in Macao, where it is quite a common girly name, Vietnam, where it is quite a rare gender-neutral name, and Australia, where it is a rare epicene name. Measured by absolute frequency, it most frequently occurs in Vietnam, the United States, and Macao. Also, Хоаи is the last name as well as the forename.