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