Family name ไตรสนธิ์ (ไตรสนธิ์ 
) , in all the world, is a very rare cognomen. The cognomen ไตรสนธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, ไตรสนธิ์ is the forename as well as the last name.