Cognomen เตชะเสน์ (Tejasin 
, เตชะเสน์ 
) , around the world, is a very rare last name. The cognomen เตชะเสน์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, เตชะเสน์ is the forename as well as the last name.