Globally, Буи (Bui 
, Boui 
, 武井 
) is a common epicene first name. The forename Буи is characteristic of Macao, where it is quite a common girly name, Vietnam, where it is quite a rare unisex name, and India, where it is a rare primarily feminine, but very seldom male name. Measured by absolute frequency, it is commonest in India, Vietnam, and Indonesia. More prevalently, Буи is the last name as well as the forename.