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In the entire world, ฤทธิฤกษ์ (ฤทธิฤกษ์ , Rittiruek
, Ritthiroek) is a very rare boy's first name. The first name ฤทธิฤกษ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare masculine name. Also, ฤทธิฤกษ์ is the last name as well as the forename.