Cognomen ศิลากาญจน์ (Silakarn 
, ศิลากาญจน์ ) , throughout the world, is a very rare family name. The surname ศิลากาญจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, ศิลากาญจน์ is the forename as well as the last name.