Cognomen Prajob (Prajob 
) , globally, is a very rare surname. The cognomen Prajob is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, Prajob is the forename as well as the last name.
Arree, Kerdkralkaew, Khong In, Pakaakekaphat, Petchrit, Thongsri, Nampakdee, Nuanthongsuk, Wongchan, Sainonsee, Shajinadesh Preethan, Shaji Nadesh, Kaewcheed, Klinchang, Puckdeechon, Rungrueng, Doungeade, Burapangkool, Burapangkoon, Pallipravan, Prajantasen, Ratanasurakarn, Burachad, Thongprasit, Chaisorn, Suksamniang, Kumar, Pirom, Suksom, Promma, Meechai, Songsri, Scanlon, Chimwihok, Chimrak, Barnthip, Banthip, Buachai, Kaniwas, Konkaew, Rammart, Rattana, Jaipong, Jundoung, Jitchun, Wongvan, Mahayotee, Suksahwat, and Ruangchaipramot