Last name Janruang (Janruang 
) , worldwide, is a rare surname. The cognomen Janruang is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
Chai, Theerapong, Kriangkrai, Chomchanok, Tossaporn, Thanaporn, Patcharin, Kanchanar, Sippakorn, Saranthat, Wisaporn, Nantasak, Nattanan, Juthamas, Prapapan, Kanokwan, Yuramas, Jongkol, Jatuthip, Kassara, Chaiwat, Suratat, Wichai, Narisa, Yupin, Kasem, Aroon, Puan, Pattarapond, and Pattrarapond