Last name Шивон (Siobhan 
, Шивон 
) , in the entire world, is a rare surname. The cognomen Шивон is characteristic of Ireland, where it is quite a rare surname, Cyprus, and Israel, where it is a rare surname. Measured by absolute frequency, the name is most common in Ireland, the United Kingdom, and Spain. Much more prevalently, Шивон is the forename as well as the last name.