Surname ธัญญาพันธ์ (ธัญญาพันธ์ 
, Thanyaphant , Tanayaphan ) , around the world, is an extremely rare family name. The cognomen ธัญญาพันธ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, ธัญญาพันธ์ is the forename as well as the last name.