Cognomen เจนสิทธิ์ (เจนสิทธิ์ 
) , throughout the world, is a very rare family name. The cognomen เจนสิทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, เจนสิทธิ์ is the forename as well as the last name.