Family name ハイ (Hai 
, Hi , Hy , along with others...) , throughout the world, is a widespread last name. The cognomen ハイ is habitual in Brunei, where it is quite a common surname, Malaysia, and Macao (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in China, Malaysia, and Vietnam. Likewise, ハイ is the forename as well as the last name.