Globally, ドイ (ドイ 
, Doi 
) is quite a rare gender-neutral forename. The forename ドイ is characteristic of Israel, where it is quite a rare unisex name, Vietnam, where it is a rare principally boy's, but very seldom female name, and Tanzania, where it is a rare unisex name. Measured by absolute frequency, the name is most common in Vietnam, India, and Indonesia. Very seldom, ドイ is the last name as well as the forename.