Family name Boonjun (Boonjun 
, บุญจุน ) , all over the world, is a rare last name. The cognomen Boonjun is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname. Very seldom, Boonjun is the forename as well as the last name.
Kwo, Poonnada, Deermon, Jenjira, Jedsada, Junsuda, Jirawat, Tanawat, Tepgunya, Natjeera, Nassuda, Nadtaya, Nakarin, Wathana, Wipawan, Yuwadee, Saowalak, Saowaluk, Sirinapa, Sirintorn, Susheela, Suparkorn, Prachit, Supaporn, Pawarun, Kanlaya, Korn, Kitti, Payon, Napat, Nutta, Ilada, Samorn, Somjai, Bundit, Pailin, Pranee, Prapit, Ratree, Natcha, Nitaya, Wanida, Surapol, Sunanta, Sukanya, Suchaya, Chanita, Pakamas, and Sophonrut