Cognomen Pongkham (Pongkham 
, ปงคำ, พงค์คำ) , worldwide, is a rare surname. The last name Pongkham is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Pongkham is the forename as well as the last name.
Mack, Teerasak, Nattawut, Nutnicha, Yaowanika, Munchuporn, Siriyakon, Kanpitcha, Khwanchit, Paphatson, Thanapong, Thanathat, Thanyarat, Thansinee, Thitikarn, Natthawut, Worapitcha, Paphawarin, Jiraporn, Piyaporn, Busabong, Namthip, Sopa, Kear, Thai, Samai, Kamon, David, Amporn, Apipat, Natthanicha, Pamoon, Siriwit, Subpong, Chalong, Kewarin, Prontip, Pimnada, Laksika, Jarunee, Waragkana, and Patcharaporn