Surname จอมฤทธิ์ (Jomrit 
, จอมฤทธิ์ , Choomrit) , all over the world, is a rare last name. The family name จอมฤทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, จอมฤทธิ์ is the forename as well as the last name.