Surname ศิวกาญจน์ (Siwakan 
, Sivakarn , ศิวกาญจน์ ) , worldwide, is a very rare family name. The last name ศิวกาญจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, ศิวกาญจน์ is the forename as well as the last name.