Family name ศิรเดช (ศิรเดช 
) , across the world, is an extremely rare cognomen. The last name ศิรเดช is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more prevalently, ศิรเดช is the forename as well as the last name.
บุหงารัตน์, เขือนอก, and รัตนไตรมงคล