In all the world, ฤทธิวรรณ (ฤทธิวรรณ 
, Ruttiwan , Ritthiwan ) is a very rare feminine first name. The first name ฤทธิวรรณ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare feminine name. Much more frequently, ฤทธิวรรณ is the last name as well as the forename.