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