In the world, ฤทธิวัฒน์ (ฤทธิวัฒน์ 
, Rithiwat , Rhittiwat ) is a very rare boy's first name. The first name ฤทธิวัฒน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare masculine name. Much less frequently, ฤทธิวัฒน์ is the last name as well as the forename.