Around the globe, เพียรพันธุ์ (เพียรพันธุ์ 
, Pianphan , Piarnpan ) is a very rare largely female, but infrequently male given name. The forename เพียรพันธุ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare largely feminine, but uncommonly masculine name. Much less frequently, เพียรพันธุ์ is the last name as well as the forename.