Worldwide, Нгиа (Ngia 
, Nguia 
, Ngya 
) is a rare unisex forename. The forename Нгиа is characteristic of Morocco, where it is a rare female name, Vietnam, where it is a rare male name, and Nigeria, where it is a very rare predominantly boy's, but scarcely girly name. Measured by absolute frequency, it most frequently occurs in Vietnam, India, and Morocco. Much more frequently, Нгиа is the last name as well as the forename.