Last name ตุลวัฒนา (ตุลวัฒนา 
, Tulvadhana, Tulwatana) , around the world, is an extremely rare cognomen. The family name ตุลวัฒนา is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Also, ตุลวัฒนา is the forename as well as the last name.