Last name ฤาฤทธิ์ (ฤาฤทธิ์ 
) , around the globe, is an extremely rare surname. The family name ฤาฤทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Also, ฤาฤทธิ์ is the forename as well as the last name.