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Worldwide, Хоай (Hoai , Khoai , Хоай ) is quite a common gender-neutral first name. The forename Хоай is characteristic of Macao, where it is quite a common feminine name, Vietnam, where it is quite a rare unisex name, and Australia, where it is a rare unisex name. Measured by absolute frequency, this name is the most popular in Vietnam, the United States, and Macao. Also, Хоай is the last name as well as the forename.