Family name Киеу (Kieu 
, Kyeu 
, Киеу 
) , across the world, is a common surname. The cognomen Киеу is characteristic of Macao, where it is quite a common surname, Vietnam, where it is quite a rare surname, and Malaysia. Measured by absolute frequency, it most frequently occurs in Vietnam, Malaysia, and the United States. Likewise, Киеу is the forename as well as the last name.