Last name Chioni (Chioni 
) , around the globe, is a rare family name. The cognomen Chioni is habitual in Southern Europe, particularly Greece, where it is quite a rare surname, Italy, where it is a rare surname, and Croatia, where it is a very rare surname. In absolute terms, it is the most numerous in Greece, Italy, and the United States. Very seldom, Chioni is the forename as well as the last name.