Surname ฉันทวิทย์ (ฉันทวิทย์ 
) , all around the world, is a very rare cognomen. The family name ฉันทวิทย์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, ฉันทวิทย์ is the forename as well as the last name.