Last name Liun (Leo 
, Liun 
, Лиун 
) , all over the world, is a widespread family name. The cognomen Liun is habitual in Saint Lucia, where it is quite a common surname, Macao, and Vanuatu (explore the name in all countries). In absolute terms, it most frequently occurs in Indonesia, Italy, and the United States. More prevalently, Liun is the forename as well as the last name.