Surname Phairach (Phairach 
) , globally, is an extremely rare cognomen. The surname Phairach is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Predominantly, Phairach is the forename as well as the last name.
Kanpai, Eiampraphai, Sribureeruk, Sriburiruks, Sringoenngam, Tangsurat, Punvichai, Phongchoo, Pookcharoen, Chanseang, Suwanaksorn, Usachantraboon, Pitichaowat, Kalumesi, Kalumesee, Boontham, Imchokchai, Lonawan, Khunsak, Koomsem, Chantha, Awapark, Tangchandradat, and Watcharatangtrirong