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In the entire world, ฤทธิดา (ฤทธิดา , Rittida , Ritdath ) is a very rare epicene given name. The first name ฤทธิดา is habitual in South-eastern Asia, particularly Thailand, where it is a very rare epicene name. Much less frequently, ฤทธิดา is the last name as well as the forename.