Cognomen Ххх (Xxx 
, Hhh , Ххх 
) , throughout the world, is a common surname. The cognomen Ххх is characteristic of Taiwan, where it is quite a common surname, Azerbaijan, where it is quite a rare surname, and Peru. In absolute terms, the name is most common in Taiwan, Indonesia, and Thailand. Likewise, Ххх is the forename as well as the last name.