Cognomen Ploenta (Ploenta 
) , in the world, is an extremely rare last name. Much more prevalently, Ploenta is the forename as well as the last name.
Paeto, Kumpheeratus, Singsathorn, Voraprukpisut, Tharasiri, Luangjunram, Chaiyapan, Mendelson, Uthaiwan, Wongtrut, Inthapruksa, Dulyapat, Poomkokrak, Peterson, Patibatsorakit, Klangsab, Meeklinhom, Yeambunya, Naivirus, Nathong, Thaworn, Julasup, Phuchsuwansakul, Mekkaew, Laonan, Chuwan, Suanma, Tofts, Pongtharangkul, and Charoenmanop