All around the world, ฉันทวิทย์ (ฉันทวิทย์ 
) is a very rare principally masculine, but very infrequently female forename. The forename ฉันทวิทย์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare principally male, but very infrequently girly name. Likewise, ฉันทวิทย์ is the last name as well as the forename.