Family name Буає (Boyer 
, Буає 
) , across the world, is a widespread surname. The family name Буає is habitual in Reunion, where it is a common surname, France, where it is quite a common surname, and Monaco (explore the name in all countries). Measured by absolute frequency, it most frequently occurs in France, the United States, and Canada. Very seldom, Буає is the forename as well as the last name.